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class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Jejunum</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 54 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-54" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">54 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B5%D8%A7%D8%A6%D9%85_(%D8%AA%D8%B4%D8%B1%D9%8A%D8%AD)" title="صائم (تشريح) – Arabic" lang="ar" hreflang="ar" data-title="صائم (تشريح)" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Ac%C4%B1_ba%C4%9F%C4%B1rsaq" title="Acı bağırsaq – Azerbaijani" lang="az" hreflang="az" data-title="Acı bağırsaq" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%9C%E0%A7%87%E0%A6%9C%E0%A7%81%E0%A6%A8%E0%A6%BE%E0%A6%AE" title="জেজুনাম – Bangla" lang="bn" hreflang="bn" data-title="জেজুনাম" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bjn mw-list-item"><a href="https://bjn.wikipedia.org/wiki/Parut_lilit" title="Parut lilit – Banjar" lang="bjn" hreflang="bjn" data-title="Parut lilit" data-language-autonym="Banjar" data-language-local-name="Banjar" class="interlanguage-link-target"><span>Banjar</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Jejunum" title="Jejunum – Bosnian" lang="bs" hreflang="bs" data-title="Jejunum" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Jej%C3%BA" title="Jejú – Catalan" lang="ca" hreflang="ca" data-title="Jejú" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%AD%D1%82%D0%B5%D0%BC%C4%95%D0%BD_%D1%8B%D1%80%D1%85%D0%B0%D0%BD_%D0%BF%D1%8B%D1%80%D1%88%D0%B8" title="Этемĕн ырхан пырши – Chuvash" lang="cv" hreflang="cv" data-title="Этемĕн ырхан пырши" data-language-autonym="Чӑвашла" data-language-local-name="Chuvash" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/La%C4%8Dn%C3%ADk" title="Lačník – Czech" lang="cs" hreflang="cs" data-title="Lačník" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Jejunwm" title="Jejunwm – Welsh" lang="cy" hreflang="cy" data-title="Jejunwm" data-language-autonym="Cymraeg" data-language-local-name="Welsh" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Hungertarmen" title="Hungertarmen – Danish" lang="da" hreflang="da" data-title="Hungertarmen" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Jejunum" title="Jejunum – German" lang="de" hreflang="de" data-title="Jejunum" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-dv mw-list-item"><a href="https://dv.wikipedia.org/wiki/%DE%96%DE%AC%DE%96%DE%AB%DE%82%DE%A6%DE%89%DE%B0" title="ޖެޖޫނަމް – Divehi" lang="dv" hreflang="dv" data-title="ޖެޖޫނަމް" data-language-autonym="ދިވެހިބަސް" data-language-local-name="Divehi" class="interlanguage-link-target"><span>ދިވެހިބަސް</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/T%C3%BChisool" title="Tühisool – Estonian" lang="et" hreflang="et" data-title="Tühisool" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Yeyuno" title="Yeyuno – Spanish" lang="es" hreflang="es" data-title="Yeyuno" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Jejuno" title="Jejuno – Esperanto" lang="eo" hreflang="eo" data-title="Jejuno" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Jejuno" title="Jejuno – Basque" lang="eu" hreflang="eu" data-title="Jejuno" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%98%DA%98%D9%88%D9%86%D9%88%D9%85" title="ژژونوم – Persian" lang="fa" hreflang="fa" data-title="ژژونوم" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/J%C3%A9junum" title="Jéjunum – French" lang="fr" hreflang="fr" data-title="Jéjunum" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Xexuno" title="Xexuno – Galician" lang="gl" hreflang="gl" data-title="Xexuno" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B9%88%EC%B0%BD%EC%9E%90" title="빈창자 – Korean" lang="ko" hreflang="ko" data-title="빈창자" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B1%D5%B2%D5%AB%D5%B3_%D5%A1%D5%B2%D5%AB%D6%84" title="Աղիճ աղիք – Armenian" lang="hy" hreflang="hy" data-title="Աղիճ աղիք" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AE%E0%A4%A7%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%A8%E0%A5%8D%E0%A4%A4%E0%A5%8D%E0%A4%B0" title="मध्यान्त्र – Hindi" lang="hi" hreflang="hi" data-title="मध्यान्त्र" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Jejunumo" title="Jejunumo – Ido" lang="io" hreflang="io" data-title="Jejunumo" data-language-autonym="Ido" data-language-local-name="Ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Usus_kosong" title="Usus kosong – Indonesian" lang="id" hreflang="id" data-title="Usus kosong" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/%C3%81sg%C3%B6rn" title="Ásgörn – Icelandic" lang="is" hreflang="is" data-title="Ásgörn" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Digiuno_(intestino)" title="Digiuno (intestino) – Italian" lang="it" hreflang="it" data-title="Digiuno (intestino)" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%94%D7%9E%D7%A2%D7%99_%D7%94%D7%A8%D7%99%D7%A7" title="המעי הריק – Hebrew" lang="he" hreflang="he" data-title="המעי הריק" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Usus_kosong" title="Usus kosong – Javanese" lang="jv" hreflang="jv" data-title="Usus kosong" data-language-autonym="Jawa" data-language-local-name="Javanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-pam mw-list-item"><a href="https://pam.wikipedia.org/wiki/Jejunum" title="Jejunum – Pampanga" lang="pam" hreflang="pam" data-title="Jejunum" data-language-autonym="Kapampangan" data-language-local-name="Pampanga" class="interlanguage-link-target"><span>Kapampangan</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9B%E1%83%9A%E1%83%98%E1%83%95%E1%83%98_%E1%83%9C%E1%83%90%E1%83%AC%E1%83%9A%E1%83%90%E1%83%95%E1%83%98" title="მლივი ნაწლავი – Georgian" lang="ka" hreflang="ka" data-title="მლივი ნაწლავი" data-language-autonym="ქართული" data-language-local-name="Georgian" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-ks mw-list-item"><a href="https://ks.wikipedia.org/wiki/%D8%AC%D9%90%D8%AC%DB%8C%D9%86%D9%8E%D9%85" title="جِجینَم – Kashmiri" lang="ks" hreflang="ks" data-title="جِجینَم" data-language-autonym="कॉशुर / کٲشُر" data-language-local-name="Kashmiri" class="interlanguage-link-target"><span>कॉशुर / کٲشُر</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%90%D1%88_%D1%96%D1%88%D0%B5%D0%BA" title="Аш ішек – Kazakh" lang="kk" hreflang="kk" data-title="Аш ішек" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/R%C3%BBviya_bir%C3%A7%C3%AE" title="Rûviya birçî – Kurdish" lang="ku" hreflang="ku" data-title="Rûviya birçî" data-language-autonym="Kurdî" data-language-local-name="Kurdish" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Tuk%C5%A1%C4%81_zarna" title="Tukšā zarna – Latvian" lang="lv" hreflang="lv" data-title="Tukšā zarna" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Tu%C5%A1%C4%8Dioji_%C5%BEarna" title="Tuščioji žarna – Lithuanian" lang="lt" hreflang="lt" data-title="Tuščioji žarna" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Neuchteren_derm" title="Neuchteren derm – Limburgish" lang="li" hreflang="li" data-title="Neuchteren derm" data-language-autonym="Limburgs" data-language-local-name="Limburgish" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/%C3%89hb%C3%A9l" title="Éhbél – Hungarian" lang="hu" hreflang="hu" data-title="Éhbél" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Jejunum" title="Jejunum – Malay" lang="ms" hreflang="ms" data-title="Jejunum" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Nuchtere_darm" title="Nuchtere darm – Dutch" lang="nl" hreflang="nl" data-title="Nuchtere darm" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E7%A9%BA%E8%85%B8" title="空腸 – Japanese" lang="ja" hreflang="ja" data-title="空腸" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Jejunum" title="Jejunum – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Jejunum" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Jelito_czcze" title="Jelito czcze – Polish" lang="pl" hreflang="pl" data-title="Jelito czcze" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Jejuno" title="Jejuno – Portuguese" lang="pt" hreflang="pt" data-title="Jejuno" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Jejun" title="Jejun – Romanian" lang="ro" hreflang="ro" data-title="Jejun" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A2%D0%BE%D1%89%D0%B0%D1%8F_%D0%BA%D0%B8%D1%88%D0%BA%D0%B0_%D1%87%D0%B5%D0%BB%D0%BE%D0%B2%D0%B5%D0%BA%D0%B0" title="Тощая кишка человека – Russian" lang="ru" hreflang="ru" data-title="Тощая кишка человека" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Jejunum" title="Jejunum – Simple English" lang="en-simple" hreflang="en-simple" data-title="Jejunum" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/La%C4%8Dn%C3%ADk" title="Lačník – Slovak" lang="sk" hreflang="sk" data-title="Lačník" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Te%C5%A1%C4%8De_%C4%8Drevo" title="Tešče črevo – Slovenian" lang="sl" hreflang="sl" data-title="Tešče črevo" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Tomtarm" title="Tomtarm – Swedish" lang="sv" hreflang="sv" data-title="Tomtarm" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a 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.infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above" style="background-color:dimgray; color: white">Jejunum</th></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Illu_small_intestine.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3d/Illu_small_intestine.jpg/250px-Illu_small_intestine.jpg" decoding="async" width="250" height="181" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/3/3d/Illu_small_intestine.jpg 1.5x" data-file-width="371" data-file-height="269" /></a></span><div class="infobox-caption">Small intestine</div></td></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Gray1041.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Gray1041.png/250px-Gray1041.png" decoding="async" width="250" height="156" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Gray1041.png/375px-Gray1041.png 1.5x, //upload.wikimedia.org/wikipedia/commons/f/fe/Gray1041.png 2x" data-file-width="500" data-file-height="312" /></a></span><div class="infobox-caption">Superior and inferior duodenal fossæ.</div></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #efefef">Details</th></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em">Pronunciation</th><td class="infobox-data"><span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/dʒ/: 'j' in 'jam'">dʒ</span><span title="/ɪ/: 'i' in 'kit'">ɪ</span><span title="/ˈ/: primary stress follows">ˈ</span><span title="/dʒ/: 'j' in 'jam'">dʒ</span><span title="/uː/: 'oo' in 'goose'">uː</span><span title="'n' in 'nigh'">n</span><span title="/əm/: 'm' in 'rhythm'">əm</span></span>/</a></span></span> <a href="/wiki/Help:Pronunciation_respelling_key" title="Help:Pronunciation respelling key"><i title="English pronunciation respelling">jij-<span style="font-size:90%">OO</span>-nəm</i></a><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Embryology" title="Embryology">Precursor</a></th><td class="infobox-data"><a href="/wiki/Midgut" title="Midgut">Midgut</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em">Part of</th><td class="infobox-data"><a href="/wiki/Small_intestine" title="Small intestine">Small intestine</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Organ_system" title="Organ system">System</a></th><td class="infobox-data"><a href="/wiki/Digestion" title="Digestion">Digestive system</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Artery" title="Artery">Artery</a></th><td class="infobox-data"><a href="/wiki/Jejunal_arteries" title="Jejunal arteries">Jejunal arteries</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Vein" title="Vein">Vein</a></th><td class="infobox-data"><a href="/wiki/Jejunal_veins" title="Jejunal veins">Jejunal veins</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Nerve" title="Nerve">Nerve</a></th><td class="infobox-data"><a href="/wiki/Celiac_ganglia" title="Celiac ganglia">Celiac ganglia</a>, <a href="/wiki/Vagus" class="mw-redirect" title="Vagus">vagus</a><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #efefef">Identifiers</th></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Latin" title="Latin">Latin</a></th><td class="infobox-data"><i>jejunum</i></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Medical_Subject_Headings" title="Medical Subject Headings">MeSH</a></th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://meshb.nlm.nih.gov/record/ui?ui=D007583">D007583</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Terminologia_Anatomica" title="Terminologia Anatomica">TA98</a></th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://ifaa.unifr.ch/Public/EntryPage/TA98%20Tree/Entity%20TA98%20EN/05.6.03.001%20Entity%20TA98%20EN.htm">A05.6.03.001</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Terminologia_Anatomica" title="Terminologia Anatomica">TA2</a></th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://ta2viewer.openanatomy.org/?id=2958">2958</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.25em"><a href="/wiki/Foundational_Model_of_Anatomy" title="Foundational Model of Anatomy">FMA</a></th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://bioportal.bioontology.org/ontologies/FMA/?p=classes&conceptid=http%3A%2F%2Fpurl.org%2Fsig%2Font%2Ffma%2Ffma7207">7207</a></td></tr><tr><td colspan="2" class="infobox-below"><a href="/wiki/Anatomical_terminology" title="Anatomical terminology">Anatomical terminology</a><div style="text-align: right;"><small class="noprint">[<a href="https://www.wikidata.org/wiki/Q185765" class="extiw" title="d:Q185765">edit on Wikidata</a>]</small></div></td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist 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.sidebar{width:100%!important;clear:both;float:none!important;margin-left:0!important;margin-right:0!important}}body.skin--responsive .mw-parser-output .sidebar a>img{max-width:none!important}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle 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//upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Stomach_colon_rectum_diagram-en.svg/400px-Stomach_colon_rectum_diagram-en.svg.png 2x" data-file-width="512" data-file-height="529" /></a></span></td></tr><tr><td class="sidebar-pretitle-with-top-image">Major parts of the</td></tr><tr><th class="sidebar-title-with-pretitle"><a href="/wiki/Gastrointestinal_tract" title="Gastrointestinal tract">Gastrointestinal tract</a></th></tr><tr><td class="sidebar-content"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title" style="color: var(--color-base)"><a href="/wiki/Upper_gastrointestinal_tract" class="mw-redirect" title="Upper gastrointestinal tract">Upper gastrointestinal tract</a></div><div class="sidebar-list-content mw-collapsible-content"> <ul><li><a href="/wiki/Mouth" title="Mouth">Mouth</a></li> <li><a href="/wiki/Pharynx" title="Pharynx">Pharynx</a></li> <li><a href="/wiki/Esophagus" title="Esophagus">Esophagus</a></li> <li><a href="/wiki/Stomach" title="Stomach">Stomach</a></li> <li><a href="/wiki/Duodenum" title="Duodenum">Duodenum</a></li></ul></div></div></td> </tr><tr><td class="sidebar-content"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title" style="color: var(--color-base)"><a href="/wiki/Lower_gastrointestinal_tract" class="mw-redirect" title="Lower gastrointestinal tract">Lower gastrointestinal tract</a></div><div class="sidebar-list-content mw-collapsible-content"> <ul><li><a href="/wiki/Small_intestine" title="Small intestine">Small intestine</a> <ul><li><a class="mw-selflink selflink">Jejunum</a></li> <li><a href="/wiki/Ileum" title="Ileum">Ileum</a></li></ul></li> <li><a href="/wiki/Large_intestine" title="Large intestine">Large intestine</a> <ul><li><a href="/wiki/Cecum" title="Cecum">Cecum</a> <ul><li><a href="/wiki/Appendix_(anatomy)" title="Appendix (anatomy)">Appendix</a></li></ul></li> <li><a href="/wiki/Ascending_colon" title="Ascending colon">Ascending colon</a></li> <li><a href="/wiki/Transverse_colon" title="Transverse colon">Transverse colon</a></li> <li><a href="/wiki/Descending_colon" title="Descending colon">Descending colon</a></li> <li><a href="/wiki/Sigmoid_colon" title="Sigmoid colon">Sigmoid colon</a></li> <li><a href="/wiki/Rectum" title="Rectum">Rectum</a></li></ul></li> <li><a href="/wiki/Anus" title="Anus">Anus</a></li></ul></div></div></td> </tr><tr><td class="sidebar-content"> <div class="sidebar-list mw-collapsible mw-collapsed"><div class="sidebar-list-title" style="color: var(--color-base)">See also</div><div class="sidebar-list-content mw-collapsible-content"> <ul><li><a href="/wiki/Gastrointestinal_wall" title="Gastrointestinal wall">Gastrointestinal wall</a></li> <li><a href="/wiki/Human_digestive_system" title="Human digestive system">Human digestive system</a></li> <li><a href="/wiki/Anatomical_terminology" title="Anatomical terminology">Anatomical terminology</a></li> <li><a href="/wiki/Outline_of_human_anatomy" title="Outline of human anatomy">Outline of human anatomy</a></li></ul></div></div></td> </tr><tr><td class="sidebar-navbar"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Gastrointestinal_tract_sidebar" title="Template:Gastrointestinal tract sidebar"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Gastrointestinal_tract_sidebar" title="Template talk:Gastrointestinal tract sidebar"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Gastrointestinal_tract_sidebar" title="Special:EditPage/Template:Gastrointestinal tract sidebar"><abbr title="Edit this template">e</abbr></a></li></ul></div></td></tr></tbody></table> <p>The <b>jejunum</b> is the second part of the <a href="/wiki/Small_intestine" title="Small intestine">small intestine</a> in <a href="/wiki/Human" title="Human">humans</a> and most <a href="/wiki/Higher_vertebrates" class="mw-redirect" title="Higher vertebrates">higher vertebrates</a>, including <a href="/wiki/Mammals" class="mw-redirect" title="Mammals">mammals</a>, <a href="/wiki/Reptiles" class="mw-redirect" title="Reptiles">reptiles</a>, and <a href="/wiki/Birds" class="mw-redirect" title="Birds">birds</a>. Its lining is specialized for the absorption by <a href="/wiki/Enterocytes" class="mw-redirect" title="Enterocytes">enterocytes</a> of small nutrient <a href="/wiki/Molecule" title="Molecule">molecules</a> which have been previously digested by <a href="/wiki/Enzymes" class="mw-redirect" title="Enzymes">enzymes</a> in the <a href="/wiki/Duodenum" title="Duodenum">duodenum</a>. </p><p>The jejunum lies between the <a href="/wiki/Duodenum" title="Duodenum">duodenum</a> and the <a href="/wiki/Ileum" title="Ileum">ileum</a> and is considered to start at the <a href="/wiki/Suspensory_muscle_of_the_duodenum" class="mw-redirect" title="Suspensory muscle of the duodenum">suspensory muscle of the duodenum</a>, a location called the <a href="/wiki/Duodenojejunal_flexure" title="Duodenojejunal flexure">duodenojejunal flexure</a>.<sup id="cite_ref-GRAYS2005_4-0" class="reference"><a href="#cite_note-GRAYS2005-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The division between the jejunum and ileum is not anatomically distinct.<sup id="cite_ref-WHEATERS2006_5-0" class="reference"><a href="#cite_note-WHEATERS2006-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> In adult <a href="/wiki/Human" title="Human">humans</a>, the small intestine is usually 6–7 m (20–23 ft) long (post mortem), about two-fifths of which (about 2.5 m (8.2 ft)) is the jejunum.<sup id="cite_ref-GRAYS2005_4-1" class="reference"><a href="#cite_note-GRAYS2005-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Structure">Structure</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jejunum&action=edit&section=1" title="Edit section: Structure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Small_intestine" title="Small intestine">Small intestine</a></div> <p>The interior surface of the jejunum—which is exposed to ingested food—is covered in finger–like projections of mucosa, called <a href="/wiki/Intestinal_villus" title="Intestinal villus">villi</a>, which increase the surface area of tissue available to absorb nutrients from ingested foodstuffs. The epithelial cells which line these villi have <a href="/wiki/Microvillus" title="Microvillus">microvilli</a>. The transport of nutrients across epithelial cells through the jejunum and ileum includes the <a href="/wiki/Passive_transport" title="Passive transport">passive transport</a> of sugar <a href="/wiki/Fructose" title="Fructose">fructose</a> and the <a href="/wiki/Active_transport" title="Active transport">active transport</a> of <a href="/wiki/Amino_acid" title="Amino acid">amino acids</a>, small <a href="/wiki/Peptide" title="Peptide">peptides</a>, <a href="/wiki/Vitamin" title="Vitamin">vitamins</a>, and most <a href="/wiki/Glucose" title="Glucose">glucose</a>. The villi in the jejunum are much longer than in the duodenum or ileum. </p><p>The <a href="/wiki/PH" title="PH">pH</a> in the jejunum is usually between 7 and 8 (neutral or slightly <a href="/wiki/Alkaline" class="mw-redirect" title="Alkaline">alkaline</a>). </p><p>The jejunum and the ileum are suspended by <a href="/wiki/Mesentery" title="Mesentery">mesentery</a> which gives the bowel great mobility within the <a href="/wiki/Abdomen" title="Abdomen">abdomen</a>. It also contains circular and longitudinal <a href="/wiki/Smooth_muscle" title="Smooth muscle">smooth muscle</a> which helps to move food along by a process known as <a href="/wiki/Peristalsis" title="Peristalsis">peristalsis</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Histology">Histology</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jejunum&action=edit&section=2" title="Edit section: Histology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The jejunum contains very few <a href="/wiki/Brunner%27s_glands" title="Brunner's glands">Brunner's glands</a> (found in the duodenum) or <a href="/wiki/Peyer%27s_patches" class="mw-redirect" title="Peyer's patches">Peyer's patches</a> (found in the ileum). However, there are a few jejunal <a href="/wiki/Lymph_node" title="Lymph node">lymph nodes</a> suspended in its mesentery. The jejunum has many large <a href="/wiki/Circular_folds" title="Circular folds">circular folds</a> in its <a href="/wiki/Submucosa" title="Submucosa">submucosa</a> called <a href="/wiki/Plicae_circulares" class="mw-redirect" title="Plicae circulares">plicae circulares</a> that increase the surface area for nutrient absorption. The plicae circulares are best developed in the jejunum. </p><p>There is no line of demarcation between the jejunum and the ileum. However, there are subtle <a href="/wiki/Histological" class="mw-redirect" title="Histological">histological</a> differences: </p> <ul><li>The jejunum has less fat inside its mesentery than the ileum.</li> <li>The jejunum is typically of larger diameter than the ileum.</li> <li>The villi of the jejunum look like long, finger-like projections, and are a histologically identifiable structure.</li> <li>While the length of the entire intestinal tract contains <a href="/wiki/Lymphoid_tissue" class="mw-redirect" title="Lymphoid tissue">lymphoid tissue</a>, only the ileum has abundant <a href="/wiki/Peyer%27s_patches" class="mw-redirect" title="Peyer's patches">Peyer's patches</a>, which are unencapsulated <a href="/wiki/Lymphoid_nodule" class="mw-redirect" title="Lymphoid nodule">lymphoid nodules</a> that contain large numbers of <a href="/wiki/Lymphocyte" title="Lymphocyte">lymphocytes</a> and immune cells, like <a href="/wiki/Microfold_cell" title="Microfold cell">microfold cells</a>.</li></ul> <ul class="gallery mw-gallery-packed"> <li class="gallerybox" style="width: 173.33333333333px"> <div class="thumb" style="width: 171.33333333333px;"><span typeof="mw:File"><a href="/wiki/File:Microvilli.jpg" class="mw-file-description" title="Transmission electron microscope (TEM) image of human jejunum"><img alt="Transmission electron microscope (TEM) image of human jejunum" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Microvilli.jpg/257px-Microvilli.jpg" decoding="async" width="172" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Microvilli.jpg/386px-Microvilli.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Microvilli.jpg/514px-Microvilli.jpg 2x" data-file-width="640" data-file-height="448" /></a></span></div> <div class="gallerytext"><a href="/wiki/Transmission_electron_microscopy" title="Transmission electron microscopy">Transmission electron microscope</a> (TEM) image of human jejunum</div> </li> <li class="gallerybox" style="width: 172px"> <div class="thumb" style="width: 170px;"><span typeof="mw:File"><a href="/wiki/File:Nudemousejejunum_EM.jpg" class="mw-file-description" title="TEM image of mouse jejunum (14,000-fold magnification)"><img alt="TEM image of mouse jejunum (14,000-fold magnification)" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Nudemousejejunum_EM.jpg/255px-Nudemousejejunum_EM.jpg" decoding="async" width="170" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Nudemousejejunum_EM.jpg/383px-Nudemousejejunum_EM.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Nudemousejejunum_EM.jpg/510px-Nudemousejejunum_EM.jpg 2x" data-file-width="960" data-file-height="678" /></a></span></div> <div class="gallerytext">TEM image of mouse jejunum (14,000-fold magnification)</div> </li> <li class="gallerybox" style="width: 92px"> <div class="thumb" style="width: 90px;"><span typeof="mw:File"><a href="/wiki/File:Dogjejunum100x.jpg" class="mw-file-description" title="Dog jejunum (magnified 100-fold)"><img alt="Dog jejunum (magnified 100-fold)" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Dogjejunum100x.jpg/135px-Dogjejunum100x.jpg" decoding="async" width="90" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Dogjejunum100x.jpg/202px-Dogjejunum100x.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/90/Dogjejunum100x.jpg/270px-Dogjejunum100x.jpg 2x" data-file-width="768" data-file-height="1024" /></a></span></div> <div class="gallerytext">Dog jejunum (magnified 100-fold)</div> </li> </ul> <div class="mw-heading mw-heading2"><h2 id="Function">Function</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jejunum&action=edit&section=3" title="Edit section: Function"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The lining of the jejunum is specialized for the absorption by <a href="/wiki/Enterocytes" class="mw-redirect" title="Enterocytes">enterocytes</a> of small nutrient particles which have been previously digested by <a href="/wiki/Enzymes" class="mw-redirect" title="Enzymes">enzymes</a> in the <a href="/wiki/Duodenum" title="Duodenum">duodenum</a>. Once absorbed, nutrients (with the exception of fat, which goes to the lymph) pass from the enterocytes into the <a href="/wiki/Enterohepatic_circulation" title="Enterohepatic circulation">enterohepatic circulation</a> and enter the <a href="/wiki/Liver" title="Liver">liver</a> via the hepatic portal vein, where the blood is processed.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Other_animals">Other animals</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jejunum&action=edit&section=4" title="Edit section: Other animals"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In <a href="/wiki/Fish" title="Fish">fish</a>, the divisions of the small intestine are not as clear and the terms <b>middle intestine</b> or <b>mid-gut</b> may be used instead of jejunum.<sup id="cite_ref-fish_feeding_book_7-0" class="reference"><a href="#cite_note-fish_feeding_book-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jejunum&action=edit&section=5" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Etymology">Etymology</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jejunum&action=edit&section=6" title="Edit section: Etymology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><i>Jejunum</i> is derived from the <a href="/wiki/Latin" title="Latin">Latin</a> word <i><a href="https://en.wiktionary.org/wiki/ieiunus#Latin" class="extiw" title="wikt:ieiunus">jējūnus</a> (iēiūnus)</i>, meaning "<a href="/wiki/Fasting" title="Fasting">fasting</a>." It was so called because this part of the <a href="/wiki/Small_intestine" title="Small intestine">small intestine</a> was frequently found to be void of food following <a href="/wiki/Death" title="Death">death</a>,<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> due to its intensive <a href="/wiki/Peristalsis" title="Peristalsis">peristaltic</a> activity relative to the <a href="/wiki/Duodenum" title="Duodenum">duodenum</a> and <a href="/wiki/Ileum" title="Ileum">ileum</a>. </p><p>The <a href="/wiki/Early_Modern_English" title="Early Modern English">Early Modern English</a> adjective <i><a href="https://en.wiktionary.org/wiki/jejune" class="extiw" title="wikt:jejune">jejune</a></i> is derived from the same root.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jejunum&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFNosek" class="citation book cs1">Nosek, Thomas M. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160324124828/http://humanphysiology.tuars.com/program/section6/6ch2/s6ch2_30.htm">"Section 6/6ch2/s6ch2_30"</a>. <i>Essentials of Human Physiology</i>. Archived from <a rel="nofollow" class="external text" href="http://humanphysiology.tuars.com/program/section6/6ch2/s6ch2_30.htm">the original</a> on 2016-03-24.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Section+6%2F6ch2%2Fs6ch2_30&rft.btitle=Essentials+of+Human+Physiology&rft.aulast=Nosek&rft.aufirst=Thomas+M.&rft_id=http%3A%2F%2Fhumanphysiology.tuars.com%2Fprogram%2Fsection6%2F6ch2%2Fs6ch2_30.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AJejunum" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><i><a href="/wiki/OED" class="mw-redirect" title="OED">OED</a></i> 2nd edition, 1989.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.merriam-webster.com/dictionary/jejunum">Entry "jejunum"</a> in <i><a rel="nofollow" class="external text" href="http://www.merriam-webster.com/">Merriam-Webster Online Dictionary</a></i>.</span> </li> <li id="cite_note-GRAYS2005-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-GRAYS2005_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-GRAYS2005_4-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDrakeVogl,_WayneTibbitts,_Adam_W._M._Mitchellillustrations_by_Richard2005" class="citation book cs1">Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W. M. Mitchell; illustrations by Richard; Richardson, Paul (2005). <i>Gray's anatomy for students</i>. Philadelphia: Elsevier/Churchill Livingstone. pp. 273–275. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-8089-2306-0" title="Special:BookSources/978-0-8089-2306-0"><bdi>978-0-8089-2306-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Gray%27s+anatomy+for+students&rft.place=Philadelphia&rft.pages=273-275&rft.pub=Elsevier%2FChurchill+Livingstone&rft.date=2005&rft.isbn=978-0-8089-2306-0&rft.aulast=Drake&rft.aufirst=Richard+L.&rft.au=Vogl%2C+Wayne&rft.au=Tibbitts%2C+Adam+W.+M.+Mitchell&rft.au=illustrations+by+Richard&rft.au=Richardson%2C+Paul&rfr_id=info%3Asid%2Fen.wikipedia.org%3AJejunum" class="Z3988"></span></span> </li> <li id="cite_note-WHEATERS2006-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-WHEATERS2006_5-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDeakin2006" class="citation book cs1">Deakin, Barbara Young; et al. (2006). <i>Wheater's functional histology : a text and colour atlas</i> (5th ed.). Churchill Livingstone/Elsevier. p. 263. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-443-068-508" title="Special:BookSources/978-0-443-068-508"><bdi>978-0-443-068-508</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Wheater%27s+functional+histology+%3A+a+text+and+colour+atlas&rft.pages=263&rft.edition=5th&rft.pub=Churchill+Livingstone%2FElsevier&rft.date=2006&rft.isbn=978-0-443-068-508&rft.aulast=Deakin&rft.aufirst=Barbara+Young&rfr_id=info%3Asid%2Fen.wikipedia.org%3AJejunum" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCRANE1960" class="citation journal cs1">CRANE, RK (Oct 1960). "Intestinal absorption of sugars". <i>Physiological Reviews</i>. <b>40</b> (4): 789–825. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1152%2Fphysrev.1960.40.4.789">10.1152/physrev.1960.40.4.789</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/13696269">13696269</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Physiological+Reviews&rft.atitle=Intestinal+absorption+of+sugars.&rft.volume=40&rft.issue=4&rft.pages=789-825&rft.date=1960-10&rft_id=info%3Adoi%2F10.1152%2Fphysrev.1960.40.4.789&rft_id=info%3Apmid%2F13696269&rft.aulast=CRANE&rft.aufirst=RK&rfr_id=info%3Asid%2Fen.wikipedia.org%3AJejunum" class="Z3988"></span></span> </li> <li id="cite_note-fish_feeding_book-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-fish_feeding_book_7-0">^</a></b></span> <span class="reference-text"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGuillaumePraxis_PublishingSadasivam_KaushikPierre_Bergot2001" class="citation book cs1">Guillaume, Jean; Praxis Publishing; Sadasivam Kaushik; Pierre Bergot; Robert Metailler (2001). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=As0flTZo_EAC&pg=PA31"><i>Nutrition and Feeding of Fish and Crustaceans</i></a>. Springer. p. 31. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781852332419" title="Special:BookSources/9781852332419"><bdi>9781852332419</bdi></a><span class="reference-accessdate">. Retrieved <span class="nowrap">2009-01-09</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Nutrition+and+Feeding+of+Fish+and+Crustaceans&rft.pages=31&rft.pub=Springer&rft.date=2001&rft.isbn=9781852332419&rft.aulast=Guillaume&rft.aufirst=Jean&rft.au=Praxis+Publishing&rft.au=Sadasivam+Kaushik&rft.au=Pierre+Bergot&rft.au=Robert+Metailler&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DAs0flTZo_EAC%26pg%3DPA31&rfr_id=info%3Asid%2Fen.wikipedia.org%3AJejunum" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHarper" class="citation web cs1">Harper, Douglas. <a rel="nofollow" class="external text" href="http://www.etymonline.com/index.php?term=jejunum">"jejunum"</a>. <i>Etymology Online</i><span class="reference-accessdate">. Retrieved <span class="nowrap">15 November</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Etymology+Online&rft.atitle=jejunum&rft.aulast=Harper&rft.aufirst=Douglas&rft_id=http%3A%2F%2Fwww.etymonline.com%2Findex.php%3Fterm%3Djejunum&rfr_id=info%3Asid%2Fen.wikipedia.org%3AJejunum" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.oed.com/view/Entry/101004?redirectedFrom=jejune#eid">"Oxford English Dictionary: jejune, adj"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Oxford+English+Dictionary%3A+jejune%2C+adj.&rft_id=http%3A%2F%2Fwww.oed.com%2Fview%2FEntry%2F101004%3FredirectedFrom%3Djejune%23eid&rfr_id=info%3Asid%2Fen.wikipedia.org%3AJejunum" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Jejunum&action=edit&section=8" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20050620080036/http://www.gastrolab.net/bb12je.htm">Gastrolab.net:The Jejunum</a></li> <li><a rel="nofollow" class="external text" href="http://www.thehealthnews.org/news/06/08/01/Peyers.Patches.html">Peyer's patches</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160304064745/http://www.thehealthnews.org/news/06/08/01/Peyers.Patches.html">Archived</a> 2016-03-04 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></li> <li><a rel="nofollow" class="external text" href="http://ect.downstate.edu/courseware/haonline/labs/l37/110100.htm">Anatomy photo:37:11-0100</a> at the SUNY Downstate Medical Center – "Abdominal Cavity: The Jejunum and the Ileum"</li> <li><a rel="nofollow" class="external text" href="http://ect.downstate.edu/courseware/haonline/imgs/00000/7000/800/7856.jpg">Anatomy image:7856</a> at the SUNY Downstate Medical Center</li></ul> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 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.navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Anatomy_of_the_gastrointestinal_tract,_excluding_the_mouth" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Gastrointestinal_tract" title="Template:Gastrointestinal tract"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Gastrointestinal_tract" title="Template talk:Gastrointestinal tract"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Gastrointestinal_tract" title="Special:EditPage/Template:Gastrointestinal tract"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Anatomy_of_the_gastrointestinal_tract,_excluding_the_mouth" style="font-size:114%;margin:0 4em">Anatomy of the <a href="/wiki/Gastrointestinal_tract" title="Gastrointestinal tract">gastrointestinal tract</a>, excluding the <a href="/wiki/Human_mouth" title="Human mouth">mouth</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Gastrointestinal_tract#Upper_gastrointestinal_tract" title="Gastrointestinal tract">Upper</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pharynx" title="Pharynx">Pharynx</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Pharyngeal_muscles" title="Pharyngeal muscles">Muscles</a></li> <li>Spaces <ul><li><a href="/wiki/Peripharyngeal_space" title="Peripharyngeal space">peripharyngeal </a></li> <li><a href="/wiki/Retropharyngeal_space" title="Retropharyngeal space">retropharyngeal </a></li> <li><a href="/wiki/Parapharyngeal_space" title="Parapharyngeal space">parapharyngeal </a></li> <li><a href="/wiki/Retrovisceral_space" title="Retrovisceral space">retrovisceral </a></li> <li><a href="/wiki/Danger_space" title="Danger space">danger</a></li> <li><a href="/wiki/Prevertebral_space" title="Prevertebral space">prevertebral</a></li></ul></li> <li><a href="/wiki/Pterygomandibular_raphe" title="Pterygomandibular raphe">Pterygomandibular raphe</a></li> <li><a href="/wiki/Pharyngeal_raphe" title="Pharyngeal raphe">Pharyngeal raphe</a></li> <li><a href="/wiki/Buccopharyngeal_fascia" title="Buccopharyngeal fascia">Buccopharyngeal fascia</a></li> <li><a href="/wiki/Pharyngobasilar_fascia" title="Pharyngobasilar fascia">Pharyngobasilar fascia</a></li> <li><a href="/wiki/Pyriform_sinus" title="Pyriform sinus">Pyriform sinus</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Esophagus" title="Esophagus">Esophagus</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Sphincters <ul><li><a href="/wiki/Esophagus#Sphincters" title="Esophagus">upper</a></li> <li><a href="/wiki/Esophagus#Sphincters" title="Esophagus">lower</a></li></ul></li> <li><a href="/wiki/Esophageal_gland" title="Esophageal gland">glands</a></li> <li><a href="/wiki/Crop_(anatomy)" title="Crop (anatomy)">crop</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Stomach" title="Stomach">Stomach</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Curvatures <ul><li><a href="/wiki/Curvatures_of_the_stomach#Greater_curvature" title="Curvatures of the stomach">greater</a></li> <li><a href="/wiki/Curvatures_of_the_stomach#Lesser_curvature" title="Curvatures of the stomach">lesser</a></li> <li><a href="/wiki/Angular_incisure" title="Angular incisure">Angular incisure</a></li></ul></li> <li><a href="/wiki/Stomach#Sections" title="Stomach">Cardia</a></li> <li><a href="/wiki/Stomach#Structure" title="Stomach">Body</a></li> <li><a href="/wiki/Stomach#Structure" title="Stomach">Fundus</a></li> <li><a href="/wiki/Pylorus" title="Pylorus">Pylorus</a></li> <li><a href="/wiki/Gastric_mucosa" title="Gastric mucosa">Gastric mucosa</a></li> <li><a href="/wiki/Gastric_folds" title="Gastric folds">Gastric folds</a></li> <li>Microanatomy <ul><li><a href="/wiki/Gastric_pits" title="Gastric pits">Gastric pits</a></li> <li><a href="/wiki/Gastric_glands" title="Gastric glands">Gastric glands</a></li> <li><a href="/wiki/Cardiac_glands" class="mw-redirect" title="Cardiac glands">Cardiac glands</a></li> <li><a href="/wiki/Fundic_glands" class="mw-redirect" title="Fundic glands">Fundic glands</a></li> <li><a href="/wiki/Pylorus#Histology" title="Pylorus">Pyloric glands</a></li> <li><a href="/wiki/Foveolar_cell" title="Foveolar cell">Foveolar cells</a></li> <li><a href="/wiki/Parietal_cell" title="Parietal cell">Parietal cells</a></li> <li><a href="/wiki/Gastric_chief_cell" title="Gastric chief cell">Gastric chief cells</a></li> <li><a href="/wiki/Enterochromaffin-like_cell" title="Enterochromaffin-like cell">Enterochromaffin-like cells</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Gastrointestinal_tract#Lower_gastrointestinal_tract" title="Gastrointestinal tract">Lower</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Small_intestine" title="Small intestine">Small intestine</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Microanatomy</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Intestinal_villus" title="Intestinal villus">Intestinal villi</a> <ul><li><a href="/wiki/Microvillus" title="Microvillus">Microvilli</a></li></ul></li> <li><a href="/wiki/Intestinal_gland" title="Intestinal gland">Intestinal glands</a></li> <li><a href="/wiki/Enterocyte" title="Enterocyte">Enterocytes</a></li> <li><a href="/wiki/Enteroendocrine_cell" title="Enteroendocrine cell">Enteroendocrine cells</a></li> <li><a href="/wiki/Goblet_cell" title="Goblet cell">Goblet cells</a></li> <li><a href="/wiki/Paneth_cell" title="Paneth cell">Paneth cells</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Duodenum" title="Duodenum">Duodenum</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Suspensory_muscle_of_duodenum" title="Suspensory muscle of duodenum">Suspensory muscle</a></li> <li><a href="/wiki/Major_duodenal_papilla" title="Major duodenal papilla">Major duodenal papilla</a></li> <li><a href="/wiki/Minor_duodenal_papilla" title="Minor duodenal papilla">Minor duodenal papilla</a></li> <li><a href="/wiki/Duodenojejunal_flexure" title="Duodenojejunal flexure">Duodenojejunal flexure</a></li> <li><a href="/wiki/Brunner%27s_glands" title="Brunner's glands">Brunner's glands</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a class="mw-selflink selflink">Jejunum</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>No substructures</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Ileum" title="Ileum">Ileum</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ileocecal_valve" title="Ileocecal valve">Ileocecal valve</a></li> <li><a href="/wiki/Peyer%27s_patch" title="Peyer's patch">Peyer's patches</a></li> <li><a href="/wiki/Microfold_cell" title="Microfold cell">Microfold cells</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Large_intestine" title="Large intestine">Large intestine</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Cecum" title="Cecum">Cecum</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Appendix_(anatomy)" title="Appendix (anatomy)">Appendix</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Large_intestine#Structure" title="Large intestine">Colon</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ascending_colon" title="Ascending colon">Ascending colon</a></li> <li><a href="/wiki/Hepatic_flexure" class="mw-redirect" title="Hepatic flexure">Hepatic flexure</a></li> <li><a href="/wiki/Transverse_colon" title="Transverse colon">Transverse colon</a></li> <li><a href="/wiki/Splenic_flexure" class="mw-redirect" title="Splenic flexure">Splenic flexure</a></li> <li><a href="/wiki/Descending_colon" title="Descending colon">Descending colon</a></li> <li><a href="/wiki/Sigmoid_colon" title="Sigmoid colon">Sigmoid colon</a></li> <li>Continuous <ul><li><a href="/wiki/Taenia_coli" title="Taenia coli">taenia coli</a></li> <li><a href="/wiki/Haustrum_(anatomy)" title="Haustrum (anatomy)">haustra</a></li> <li><a href="/wiki/Epiploic_appendix" title="Epiploic appendix">epiploic appendix</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Rectum" title="Rectum">Rectum</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Transverse_folds_of_rectum" title="Transverse folds of rectum">Transverse folds</a></li> <li><a href="/wiki/Rectal_ampulla" class="mw-redirect" title="Rectal ampulla">Ampulla</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Anal_canal" title="Anal canal">Anal canal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Human_anus" title="Human anus">Anus</a></li> <li><a href="/wiki/Anal_columns" title="Anal columns">Anal columns</a></li> <li><a href="/wiki/Anal_valves" title="Anal valves">Anal valves</a></li> <li><a href="/wiki/Anal_sinuses" title="Anal sinuses">Anal sinuses</a></li> <li><a href="/wiki/Pectinate_line" title="Pectinate line">Pectinate line</a></li> <li><a href="/wiki/Internal_anal_sphincter" title="Internal anal sphincter">Internal anal sphincter</a></li> <li><a href="/wiki/Intersphincteric_groove" class="mw-redirect" title="Intersphincteric groove">Intersphincteric groove</a></li> <li><a href="/wiki/External_anal_sphincter" title="External anal sphincter">External anal sphincter</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Gastrointestinal_wall" title="Gastrointestinal wall">Wall</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Serous_membrane" title="Serous membrane">Serosa</a> / <a href="/wiki/Adventitia" title="Adventitia">Adventitia</a></li> <li><a href="/wiki/Subserosa" title="Subserosa">Subserosa</a></li> <li><a href="/wiki/Muscular_layer" title="Muscular layer">Muscular layer</a></li> <li><a href="/wiki/Submucosa" title="Submucosa">Submucosa</a></li> <li><a href="/wiki/Circular_folds" title="Circular folds">Circular folds</a></li> <li><a href="/wiki/Mucous_membrane" title="Mucous membrane">Mucosa</a></li> <li><a href="/wiki/Muscularis_mucosae" title="Muscularis mucosae">Muscularis mucosa</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"><style data-mw-deduplicate="TemplateStyles:r1038841319">.mw-parser-output .tooltip-dotted{border-bottom:1px dotted;cursor:help}</style><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1038841319"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1038841319"></div><div role="navigation" class="navbox authority-control" aria-labelledby="Authority_control_databases_frameless&#124;text-top&#124;10px&#124;alt=Edit_this_at_Wikidata&#124;link=https&#58;//www.wikidata.org/wiki/Q185765#identifiers&#124;class=noprint&#124;Edit_this_at_Wikidata" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Authority_control_databases_frameless&#124;text-top&#124;10px&#124;alt=Edit_this_at_Wikidata&#124;link=https&#58;//www.wikidata.org/wiki/Q185765#identifiers&#124;class=noprint&#124;Edit_this_at_Wikidata" style="font-size:114%;margin:0 4em"><a href="/wiki/Help:Authority_control" title="Help:Authority control">Authority control databases</a> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q185765#identifiers" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">National</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><span class="rt-commentedText tooltip tooltip-dotted" title="Jejunum"><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/sh85069873">United States</a></span></span></li><li><span class="uid"><span class="rt-commentedText tooltip tooltip-dotted" title="Jéjunum"><a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb146076870">France</a></span></span></li><li><span class="uid"><span class="rt-commentedText tooltip tooltip-dotted" title="Jéjunum"><a rel="nofollow" class="external text" href="https://data.bnf.fr/ark:/12148/cb146076870">BnF data</a></span></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="http://olduli.nli.org.il/F/?func=find-b&local_base=NLX10&find_code=UID&request=987007531521105171">Israel</a></span></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a class="external text" href="http://tools.wmflabs.org/wikidata-externalid-url/?p=1323&url_prefix=https:%2F%2Fwww.unifr.ch%2Fifaa%2FPublic%2FEntryPage%2FTA98%20Tree%2FEntity%20TA98%20EN%2F&url_suffix=%20Entity%20TA98%20EN.htm&id=A05.6.03.001">Terminologia Anatomica</a></span></li></ul></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: 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