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<div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Webbplats"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Innehåll" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innehåll</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">dölj</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inledning</div> </a> </li> <li id="toc-Spermatocytogenes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Spermatocytogenes"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Spermatocytogenes</span> </div> </a> <ul id="toc-Spermatocytogenes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Meios" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Meios"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Meios</span> </div> </a> <ul id="toc-Meios-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Spermiogenes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Spermiogenes"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Spermiogenes</span> </div> </a> <ul id="toc-Spermiogenes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referenser" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referenser"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Referenser</span> </div> </a> <ul id="toc-Referenser-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innehåll" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Växla innehållsförteckningen" > <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">Växla innehållsförteckningen</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">Spermatogenes</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="Gå till en artikel på ett annat språk. Tillgänglig på 43 språk" > <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-43" 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">43 språk</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%AA%D9%83%D9%88%D9%86_%D8%A7%D9%84%D8%AD%D9%8A%D9%88%D8%A7%D9%86%D8%A7%D8%AA_%D8%A7%D9%84%D9%85%D9%86%D9%88%D9%8A%D8%A9" title="تكون الحيوانات المنوية – arabiska" lang="ar" hreflang="ar" data-title="تكون الحيوانات المنوية" data-language-autonym="العربية" data-language-local-name="arabiska" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B8%E0%A7%8D%E0%A6%AA%E0%A6%BE%E0%A6%B0%E0%A7%8D%E0%A6%AE%E0%A6%BE%E0%A6%9F%E0%A7%8B%E0%A6%9C%E0%A7%87%E0%A6%A8%E0%A7%87%E0%A6%B8%E0%A6%BF%E0%A6%B8" title="স্পার্মাটোজেনেসিস – bengali" lang="bn" hreflang="bn" data-title="স্পার্মাটোজেনেসিস" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A1%D0%BF%D0%B5%D1%80%D0%BC%D0%B0%D1%82%D0%BE%D0%B3%D0%B5%D0%BD%D0%B5%D0%B7%D0%B0" title="Сперматогенеза – bulgariska" lang="bg" hreflang="bg" data-title="Сперматогенеза" data-language-autonym="Български" data-language-local-name="bulgariska" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Spermatogeneza" title="Spermatogeneza – bosniska" lang="bs" hreflang="bs" data-title="Spermatogeneza" data-language-autonym="Bosanski" data-language-local-name="bosniska" 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/Espermatog%C3%A8nesi" title="Espermatogènesi – katalanska" lang="ca" hreflang="ca" data-title="Espermatogènesi" data-language-autonym="Català" data-language-local-name="katalanska" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Spermatogeneze" title="Spermatogeneze – tjeckiska" lang="cs" hreflang="cs" data-title="Spermatogeneze" data-language-autonym="Čeština" data-language-local-name="tjeckiska" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Spermatogenese" title="Spermatogenese – tyska" lang="de" hreflang="de" data-title="Spermatogenese" data-language-autonym="Deutsch" data-language-local-name="tyska" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Spermatogenees" title="Spermatogenees – estniska" lang="et" hreflang="et" data-title="Spermatogenees" data-language-autonym="Eesti" data-language-local-name="estniska" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A3%CF%80%CE%B5%CF%81%CE%BC%CE%B1%CF%84%CE%BF%CE%B3%CE%AD%CE%BD%CE%B5%CF%83%CE%B7" title="Σπερματογένεση – grekiska" lang="el" hreflang="el" data-title="Σπερματογένεση" data-language-autonym="Ελληνικά" data-language-local-name="grekiska" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Spermatogenesis" title="Spermatogenesis – engelska" lang="en" hreflang="en" data-title="Spermatogenesis" data-language-autonym="English" data-language-local-name="engelska" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Espermatog%C3%A9nesis" title="Espermatogénesis – spanska" lang="es" hreflang="es" data-title="Espermatogénesis" data-language-autonym="Español" data-language-local-name="spanska" 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/Spermatogenezo" title="Spermatogenezo – esperanto" lang="eo" hreflang="eo" data-title="Spermatogenezo" 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/Espermatogenesi" title="Espermatogenesi – baskiska" lang="eu" hreflang="eu" data-title="Espermatogenesi" data-language-autonym="Euskara" data-language-local-name="baskiska" 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/%D8%A7%D8%B3%D9%BE%D8%B1%D9%85%D8%A7%D8%AA%D9%88%DA%98%D9%86%D8%B2" title="اسپرماتوژنز – persiska" lang="fa" hreflang="fa" data-title="اسپرماتوژنز" data-language-autonym="فارسی" data-language-local-name="persiska" 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/Spermatogen%C3%A8se" title="Spermatogenèse – franska" lang="fr" hreflang="fr" data-title="Spermatogenèse" data-language-autonym="Français" data-language-local-name="franska" 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/Espermatox%C3%A9nese" title="Espermatoxénese – galiciska" lang="gl" hreflang="gl" data-title="Espermatoxénese" data-language-autonym="Galego" data-language-local-name="galiciska" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8D%D5%BA%D5%A5%D6%80%D5%B4%D5%A1%D5%BF%D5%B8%D5%A3%D5%A5%D5%B6%D5%A5%D5%A6" title="Սպերմատոգենեզ – armeniska" lang="hy" hreflang="hy" data-title="Սպերմատոգենեզ" data-language-autonym="Հայերեն" data-language-local-name="armeniska" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Spermatogeneza" title="Spermatogeneza – kroatiska" lang="hr" hreflang="hr" data-title="Spermatogeneza" data-language-autonym="Hrvatski" data-language-local-name="kroatiska" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Spermatogenezo" title="Spermatogenezo – ido" lang="io" hreflang="io" data-title="Spermatogenezo" 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/Spermatogenesis" title="Spermatogenesis – indonesiska" lang="id" hreflang="id" data-title="Spermatogenesis" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiska" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Spermatogenesi" title="Spermatogenesi – italienska" lang="it" hreflang="it" data-title="Spermatogenesi" data-language-autonym="Italiano" data-language-local-name="italienska" 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%A1%D7%A4%D7%A8%D7%9E%D7%98%D7%95%D7%92%D7%A0%D7%96%D7%94" title="ספרמטוגנזה – hebreiska" lang="he" hreflang="he" data-title="ספרמטוגנזה" data-language-autonym="עברית" data-language-local-name="hebreiska" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A1%E1%83%9E%E1%83%94%E1%83%A0%E1%83%9B%E1%83%90%E1%83%A2%E1%83%9D%E1%83%92%E1%83%94%E1%83%9C%E1%83%94%E1%83%96%E1%83%98" title="სპერმატოგენეზი – georgiska" lang="ka" hreflang="ka" data-title="სპერმატოგენეზი" data-language-autonym="ქართული" data-language-local-name="georgiska" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A1%D0%BF%D0%B5%D1%80%D0%BC%D0%B0%D1%82%D0%BE%D0%B3%D0%B5%D0%BD%D0%B5%D0%B7" title="Сперматогенез – kazakiska" lang="kk" hreflang="kk" data-title="Сперматогенез" data-language-autonym="Қазақша" data-language-local-name="kazakiska" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Spermato%C4%A3en%C4%93ze" title="Spermatoģenēze – lettiska" lang="lv" hreflang="lv" data-title="Spermatoģenēze" data-language-autonym="Latviešu" data-language-local-name="lettiska" 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/Spermatogenez%C4%97" title="Spermatogenezė – litauiska" lang="lt" hreflang="lt" data-title="Spermatogenezė" data-language-autonym="Lietuvių" data-language-local-name="litauiska" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A1%D0%BF%D0%B5%D1%80%D0%BC%D0%B0%D1%82%D0%BE%D0%B3%D0%B5%D0%BD%D0%B5%D0%B7%D0%B0" title="Сперматогенеза – makedonska" lang="mk" hreflang="mk" data-title="Сперматогенеза" data-language-autonym="Македонски" data-language-local-name="makedonska" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Spermatogenesis" title="Spermatogenesis – malajiska" lang="ms" hreflang="ms" data-title="Spermatogenesis" data-language-autonym="Bahasa Melayu" data-language-local-name="malajiska" 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/Spermatogenese" title="Spermatogenese – nederländska" lang="nl" hreflang="nl" data-title="Spermatogenese" data-language-autonym="Nederlands" data-language-local-name="nederländska" 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%B2%BE%E5%AD%90%E5%BD%A2%E6%88%90" title="精子形成 – japanska" lang="ja" hreflang="ja" data-title="精子形成" data-language-autonym="日本語" data-language-local-name="japanska" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Spermatogeneza" title="Spermatogeneza – polska" lang="pl" hreflang="pl" data-title="Spermatogeneza" data-language-autonym="Polski" data-language-local-name="polska" 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/Espermatog%C3%AAnese" title="Espermatogênese – portugisiska" lang="pt" hreflang="pt" data-title="Espermatogênese" data-language-autonym="Português" data-language-local-name="portugisiska" 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/Spermatogenez%C4%83" title="Spermatogeneză – rumänska" lang="ro" hreflang="ro" data-title="Spermatogeneză" data-language-autonym="Română" data-language-local-name="rumänska" 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%A1%D0%BF%D0%B5%D1%80%D0%BC%D0%B0%D1%82%D0%BE%D0%B3%D0%B5%D0%BD%D0%B5%D0%B7" title="Сперматогенез – ryska" lang="ru" hreflang="ru" data-title="Сперматогенез" data-language-autonym="Русский" data-language-local-name="ryska" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Spermatogeneza" title="Spermatogeneza – slovenska" lang="sl" hreflang="sl" data-title="Spermatogeneza" data-language-autonym="Slovenščina" data-language-local-name="slovenska" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A1%D0%BF%D0%B5%D1%80%D0%BC%D0%B0%D1%82%D0%BE%D0%B3%D0%B5%D0%BD%D0%B5%D0%B7%D0%B0" title="Сперматогенеза – serbiska" lang="sr" hreflang="sr" data-title="Сперматогенеза" data-language-autonym="Српски / srpski" data-language-local-name="serbiska" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Sp%C3%A9rmatogenesis" title="Spérmatogenesis – sundanesiska" lang="su" hreflang="su" data-title="Spérmatogenesis" data-language-autonym="Sunda" data-language-local-name="sundanesiska" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Spermatogeneesi" title="Spermatogeneesi – finska" lang="fi" hreflang="fi" data-title="Spermatogeneesi" data-language-autonym="Suomi" data-language-local-name="finska" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%AA%E0%B8%A3%E0%B9%89%E0%B8%B2%E0%B8%87%E0%B8%AA%E0%B9%80%E0%B8%9B%E0%B8%B4%E0%B8%A3%E0%B9%8C%E0%B8%A1" title="การสร้างสเปิร์ม – thailändska" lang="th" hreflang="th" data-title="การสร้างสเปิร์ม" data-language-autonym="ไทย" data-language-local-name="thailändska" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Spermatogenez" title="Spermatogenez – turkiska" lang="tr" hreflang="tr" data-title="Spermatogenez" data-language-autonym="Türkçe" data-language-local-name="turkiska" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A1%D0%BF%D0%B5%D1%80%D0%BC%D0%B0%D1%82%D0%BE%D0%B3%D0%B5%D0%BD%D0%B5%D0%B7" title="Сперматогенез – ukrainska" lang="uk" hreflang="uk" data-title="Сперматогенез" data-language-autonym="Українська" data-language-local-name="ukrainska" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/S%E1%BB%B1_t%E1%BA%A1o_tinh" title="Sự tạo tinh – vietnamesiska" lang="vi" hreflang="vi" data-title="Sự tạo tinh" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesiska" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%B2%BE%E5%AD%90%E5%8F%91%E7%94%9F" title="精子发生 – kinesiska" lang="zh" hreflang="zh" data-title="精子发生" data-language-autonym="中文" data-language-local-name="kinesiska" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q36961#sitelinks-wikipedia" title="Redigera interwikilänkar" class="wbc-editpage">Redigera länkar</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namnrymder"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Spermatogenes" title="Visa 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wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q36961" title="Länk till anslutet databasobjekt [g]" accesskey="g"><span>Wikidata-objekt</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Sidverktyg"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Utseende"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Utseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">dölj</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Från Wikipedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="sv" dir="ltr"><p><b>Spermatogenes</b> är den process i vilken de manliga könscellerna differentieras från stamceller till färdiga spermier. Man brukar dela in spermatogenesen i tre stadier: spermatocytogenes, meios och spermiogenes. </p><p><a href="/wiki/Adolph_von_La_Valette-St._George" title="Adolph von La Valette-St. George">Adolph von La Valette-St. George</a> var en framstående forskare inom spermatogenes<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-reference-link-bracket">[</span>1<span class="cite-reference-link-bracket">]</span></a></sup>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Spermatocytogenes">Spermatocytogenes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Spermatogenes&veaction=edit&section=1" title="Redigera avsnitt: Spermatocytogenes" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Spermatogenes&action=edit&section=1" title="Redigera avsnitts källkod: Spermatocytogenes"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fil:Spermatocytogenesis.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Spermatocytogenesis.png/250px-Spermatocytogenesis.png" decoding="async" width="250" height="333" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/d/d4/Spermatocytogenesis.png 1.5x" data-file-width="375" data-file-height="500" /></a><figcaption></figcaption></figure> <p>Den stora majoriteten av alla celldelningar är <a href="/wiki/Mitos" title="Mitos">mitos</a>, där en cell delar sig och blir två celler av mycket likartad natur. Ibland delar sig cellen till fyra dotterceller som innehåller hälften så mycket genetiskt material som modercellen. Det heter <a href="/wiki/Meios" title="Meios">meios</a>. </p><p>Spermatocyteogenes är den speciella varianten av mitos som producerar en cell som kommer att genomgå meios och en cell som kommer att genomgå spermatocytogenes. Spermatogonier delar sig genom mitos till att bilda spermatocyter. Det finns två huvudtyper av spermatogonier Typ A och B. Typ A kan ersätta sig själva medan typ B fortsätter in i meiosen. Spermatogonier binder till basalmembranet och har rund eller oval kärna. </p> <div class="mw-heading mw-heading2"><h2 id="Meios">Meios</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Spermatogenes&veaction=edit&section=2" title="Redigera avsnitt: Meios" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Spermatogenes&action=edit&section=2" title="Redigera avsnitts källkod: Meios"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Spermatocyterna kallas primära under första delen av <a href="/wiki/Meios" title="Meios">meiosen</a> (Meios I) och kallas sedermera sekundära i den följande reduktionsdelningen (Meios II). Den första delen är mycket längre än den betydligt kortare andra delen vilket leder till att det är mycket lättare att observera primära spermatocyter. </p> <div class="mw-heading mw-heading2"><h2 id="Spermiogenes">Spermiogenes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Spermatogenes&veaction=edit&section=3" title="Redigera avsnitt: Spermiogenes" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Spermatogenes&action=edit&section=3" title="Redigera avsnitts källkod: Spermiogenes"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Efter meiosen så kallas cellerna spermatider och de mognar i testiklarna och bitestiklarna där de genomgår metamorfos och utvecklas till den färdiga spermien (spermatozoa). </p> <div class="mw-heading mw-heading2"><h2 id="Referenser">Referenser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Spermatogenes&veaction=edit&section=4" title="Redigera avsnitt: Referenser" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Spermatogenes&action=edit&section=4" title="Redigera avsnitts källkod: Referenser"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1">^</a> <span class="reference-text"><cite style="font-style:normal" class="book"> <i><a rel="nofollow" class="external text" href="https://runeberg.org/nfcq/0065.html">La Valette S:t George, Adolf</a></i> (2). Nordisk Familjebok. 1925<span class="printonly">. <a rel="nofollow" class="external free" href="https://runeberg.org/nfcq/0065.html">https://runeberg.org/nfcq/0065.html</a></span><span class="reference-accessdate">. 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style="height:2px;"><td></td></tr><tr><td class="navbox-group" style=";;">Anatomi och processer</td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r56287950"></div><table class="navbox-subgroup" style="width:100%;border-spacing:0;;;;"><tbody><tr><td class="navbox-group" style=";padding-left:0em;padding-right:0em;;"><div style="padding:0em 0.75em;">Kvinnan</div></td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><a href="/wiki/Livmoder" title="Livmoder">Livmoder</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Livmoderslemhinna" title="Livmoderslemhinna">Livmoderslemhinna</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Moderkaka" title="Moderkaka">Moderkaka</a><span style="font-weight:bold;"> · </span> 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style="font-weight:bold;"> · </span> <a href="/wiki/Prostata" title="Prostata">Prostata</a><span style="font-weight:bold;"> · </span> <a class="mw-selflink selflink">Spermatogenes</a><span style="font-weight:bold;"> · </span> <a href="/wiki/S%C3%A4desv%C3%A4tska" title="Sädesvätska">Sperma</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Spermie" title="Spermie">Spermie</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Testikel" title="Testikel">Testikel</a></div></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";padding-left:0em;padding-right:0em;;"><div style="padding:0em 0.75em;">Utveckling</div></td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><a href="/wiki/K%C3%B6nsdifferentiering" title="Könsdifferentiering">Könsdifferentiering</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Pubertet" title="Pubertet">Pubertet</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Klimakterium" title="Klimakterium">Klimakterium</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Andropaus" title="Andropaus">Andropaus</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Menopaus" title="Menopaus">Menopaus</a></div></td></tr></tbody></table><div></div></td><td style="width:0%;padding:0px 0px 0px 2px;" rowspan="13"><span typeof="mw:File"><a href="/wiki/Fil:Feto-30-semanas.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Feto-30-semanas.jpg/150px-Feto-30-semanas.jpg" decoding="async" width="150" height="149" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Feto-30-semanas.jpg/225px-Feto-30-semanas.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Feto-30-semanas.jpg/300px-Feto-30-semanas.jpg 2x" data-file-width="320" data-file-height="317" /></a></span></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";;">Tekniker</td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><a href="/wiki/Samlag" title="Samlag">Samlag</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Assisterad_befruktning" title="Assisterad befruktning">Assisterad befruktning</a> (<i><a href="/wiki/Insemination" title="Insemination">Insemination</a><span style="font-weight:bold;"> · </span> <a href="/wiki/In_vitro-fertilisering" title="In vitro-fertilisering">In vitro-fertilisering</a></i>)<span style="font-weight:bold;"> · </span> <a href="/wiki/Abort" title="Abort">Abort</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Skrapning" title="Skrapning">Skrapning</a><span style="font-weight:bold;"> · </span> <a href="/wiki/%C3%84ggdonation" title="Äggdonation">Äggdonation</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Spermadonation" title="Spermadonation">Spermadonation</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Fosterdiagnostik" title="Fosterdiagnostik">Fosterdiagnostik</a></div></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";;">Hormoner</td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><a href="/wiki/Inhibin" title="Inhibin">Inhibin</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Humant_koriongonadotropin" title="Humant koriongonadotropin">hCG</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Kortikotropinfris%C3%A4ttande_hormon" title="Kortikotropinfrisättande hormon">Kortikotropinfrisättande hormon</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Oxytocin" title="Oxytocin">Oxytocin</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Progesteron" title="Progesteron">Progesteron</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Prolaktin" title="Prolaktin">Prolaktin</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Relaxin" title="Relaxin">Relaxin</a><span style="font-weight:bold;"> · </span> <a href="/wiki/%C3%96striol" title="Östriol">Östriol</a></div></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";;"><a href="/wiki/Fosterutveckling" title="Fosterutveckling">Fosterutveckling</a></td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><a href="/wiki/Befruktning" title="Befruktning">Befruktning</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Zygot" title="Zygot">Zygot</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Morula" title="Morula">Morula</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Blastocyst" title="Blastocyst">Blastocyst</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Embryo" title="Embryo">Embryo</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Foster" title="Foster">Foster</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Navelstr%C3%A4ng" title="Navelsträng">Navelsträng</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Fostervatten" title="Fostervatten">Fostervatten</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Fosterhinna" title="Fosterhinna">Fosterhinna</a> (<i><a href="/wiki/Amnion" title="Amnion">Amnion</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Korion" title="Korion">Korion</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Amnioter" title="Amnioter">Allantois</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Gules%C3%A4ck" title="Gulesäck">Gulesäck</a></i>)<span style="font-weight:bold;"> · </span> <a href="/wiki/Fetus_in_fetu" title="Fetus in fetu">Fetus in fetu</a></div></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";;"><a href="/wiki/F%C3%B6rlossning" title="Förlossning">Förlossning</a> och <a href="/wiki/Barns%C3%A4ng" class="mw-redirect" title="Barnsäng">barnsäng</a></td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><a href="/wiki/Amning" title="Amning">Amning</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Auroramottagning" title="Auroramottagning">Auroramottagning</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Hemf%C3%B6rlossning" title="Hemförlossning">Hemförlossning</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Kejsarsnitt" title="Kejsarsnitt">Kejsarsnitt</a><span style="font-weight:bold;"> · </span> <a href="/wiki/F%C3%B6rlossning" title="Förlossning">Vaginal förlossning</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Vattenf%C3%B6rlossning" title="Vattenförlossning">Vattenförlossning</a></div></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";;">Komplikationer</td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><a href="/wiki/Analsfinkterskada" title="Analsfinkterskada">Analsfinkterskada</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Druvb%C3%B6rd" title="Druvbörd">Druvbörd</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Fetalt_alkoholsyndrom" title="Fetalt alkoholsyndrom">Fetalt alkoholsyndrom</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Fosterd%C3%B6d" title="Fosterdöd">Fosterdöd</a><span style="font-weight:bold;"> · </span> <a href="/wiki/F%C3%B6rlossningsskada" title="Förlossningsskada">Förlossningsskada</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Graviditetsdiabetes" title="Graviditetsdiabetes">Graviditetsdiabetes</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Graviditetshypertoni" title="Graviditetshypertoni">Graviditetshypertoni</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Graviditetsillam%C3%A5ende" title="Graviditetsillamående">Graviditetsillamående</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Graviditetstoxikos" class="mw-redirect" title="Graviditetstoxikos">Graviditetstoxikos</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Hyperemesis_gravidarum" title="Hyperemesis gravidarum">Hyperemesis gravidarum</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Missfall" title="Missfall">Missfall</a><span style="font-weight:bold;"> · </span> <a href="/wiki/M%C3%B6drad%C3%B6dlighet" title="Mödradödlighet">Mödradödlighet</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Ofrivillig_barnl%C3%B6shet" title="Ofrivillig barnlöshet">Ofrivillig barnlöshet</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Pl%C3%B6tslig_sp%C3%A4dbarnsd%C3%B6d" title="Plötslig spädbarnsdöd">Plötslig spädbarnsdöd</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Postpartumdepression" title="Postpartumdepression">Postpartumdepression</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Postpartumpsykos" title="Postpartumpsykos">Postpartumpsykos</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Utomkvedshavandeskap" title="Utomkvedshavandeskap">Utomkvedshavandeskap</a></div></td></tr><tr style="height:2px"><td></td></tr><tr><td class="navbox-group" style=";;">Politik</td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><a href="/wiki/Abortfr%C3%A5gan" title="Abortfrågan">Abortmotstånd</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Befolkningspolitik" title="Befolkningspolitik">Befolkningspolitik</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Biomakt" title="Biomakt">Biomakt</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Celibat" title="Celibat">Celibat</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Familjeplanering" title="Familjeplanering">Familjeplanering</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Familjepolitik" title="Familjepolitik">Familjepolitik</a><span style="font-weight:bold;"> · </span> <a href="/wiki/F%C3%B6r%C3%A4ldraledighet" title="Föräldraledighet">Föräldraledighet</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Ja_till_livet" title="Ja till livet">Ja till livet</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Lebensborn" title="Lebensborn">Lebensborn</a><span style="font-weight:bold;"> · </span> <a href="/wiki/M%C3%B6drav%C3%A5rdscentral" title="Mödravårdscentral">Mödravård</a><span style="font-weight:bold;"> · </span> <a href="/wiki/Tv%C3%A5ngssterilisering" title="Tvångssterilisering">Tvångssterilisering</a></div></td></tr></tbody></table></td></tr></tbody></table>    </div><noscript><img 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