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class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</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">Inizio</div> </a> </li> <li id="toc-Dettagli" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Dettagli"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Dettagli</span> </div> </a> <ul id="toc-Dettagli-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Malattie" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Malattie"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Malattie</span> </div> </a> <ul id="toc-Malattie-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-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="Indice" 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="Mostra/Nascondi l'indice" > <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">Mostra/Nascondi l'indice</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">Guaina mielinica</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="Vai a una voce in un'altra lingua. Disponibile in 51 lingue" > <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-51" 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">51 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Mi%C3%ABlien" title="Miëlien - afrikaans" lang="af" hreflang="af" data-title="Miëlien" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D9%8A%D8%A7%D9%84%D9%8A%D9%86" title="ميالين - arabo" lang="ar" hreflang="ar" data-title="ميالين" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9C%D0%B8%D0%B5%D0%BB%D0%B8%D0%BD" title="Миелин - bulgaro" lang="bg" hreflang="bg" data-title="Миелин" data-language-autonym="Български" data-language-local-name="bulgaro" 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/Mijelin" title="Mijelin - bosniaco" lang="bs" hreflang="bs" data-title="Mijelin" data-language-autonym="Bosanski" data-language-local-name="bosniaco" 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/Mielina" title="Mielina - catalano" lang="ca" hreflang="ca" data-title="Mielina" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D9%85%D8%A7%DB%8C%D9%84%DB%8C%D9%86" title="مایلین - curdo centrale" lang="ckb" hreflang="ckb" data-title="مایلین" data-language-autonym="کوردی" data-language-local-name="curdo centrale" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Myelin" title="Myelin - ceco" lang="cs" hreflang="cs" data-title="Myelin" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Myelin" title="Myelin - danese" lang="da" hreflang="da" data-title="Myelin" data-language-autonym="Dansk" data-language-local-name="danese" 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/Myelin" title="Myelin - tedesco" lang="de" hreflang="de" data-title="Myelin" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9C%CF%85%CE%B5%CE%BB%CE%AF%CE%BD%CE%B7" title="Μυελίνη - greco" lang="el" hreflang="el" data-title="Μυελίνη" data-language-autonym="Ελληνικά" data-language-local-name="greco" 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/Myelin" title="Myelin - inglese" lang="en" hreflang="en" data-title="Myelin" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Mjelino" title="Mjelino - esperanto" lang="eo" hreflang="eo" data-title="Mjelino" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Mielina" title="Mielina - spagnolo" lang="es" hreflang="es" data-title="Mielina" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/M%C3%BCeliin" title="Müeliin - estone" lang="et" hreflang="et" data-title="Müeliin" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Mielina" title="Mielina - basco" lang="eu" hreflang="eu" data-title="Mielina" data-language-autonym="Euskara" data-language-local-name="basco" 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/%D9%85%DB%8C%D9%84%DB%8C%D9%86" title="میلین - persiano" lang="fa" hreflang="fa" data-title="میلین" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Myeliini" title="Myeliini - finlandese" lang="fi" hreflang="fi" data-title="Myeliini" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/My%C3%A9line" title="Myéline - francese" lang="fr" hreflang="fr" data-title="Myéline" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Miailin" title="Miailin - irlandese" lang="ga" hreflang="ga" data-title="Miailin" data-language-autonym="Gaeilge" data-language-local-name="irlandese" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Mielina" title="Mielina - galiziano" lang="gl" hreflang="gl" data-title="Mielina" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%99%D7%90%D7%9C%D7%99%D7%9F" title="מיאלין - ebraico" lang="he" hreflang="he" data-title="מיאלין" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Mielinh%C3%BCvely" title="Mielinhüvely - ungherese" lang="hu" hreflang="hu" data-title="Mielinhüvely" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%84%D5%AB%D5%A5%D5%AC%D5%AB%D5%B6" title="Միելին - armeno" lang="hy" hreflang="hy" data-title="Միելին" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Selubung_mielin" title="Selubung mielin - indonesiano" lang="id" hreflang="id" data-title="Selubung mielin" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Myelino" title="Myelino - ido" lang="io" hreflang="io" data-title="Myelino" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/M%C3%BDlissl%C3%AD%C3%B0ur" title="Mýlisslíður - islandese" lang="is" hreflang="is" data-title="Mýlisslíður" data-language-autonym="Íslenska" data-language-local-name="islandese" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E9%AB%84%E9%9E%98" title="髄鞘 - giapponese" lang="ja" hreflang="ja" data-title="髄鞘" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9C%D0%B8%D0%B5%D0%BB%D0%B8%D0%BD_%D2%9B%D0%B0%D0%B1%D1%8B%D2%9B%D1%88%D0%B0%D1%81%D1%8B" title="Миелин қабықшасы - kazako" lang="kk" hreflang="kk" data-title="Миелин қабықшасы" data-language-autonym="Қазақша" data-language-local-name="kazako" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%AF%B8%EC%97%98%EB%A6%B0" title="미엘린 - coreano" lang="ko" hreflang="ko" data-title="미엘린" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Myelina" title="Myelina - latino" lang="la" hreflang="la" data-title="Myelina" data-language-autonym="Latina" data-language-local-name="latino" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AE%E0%B4%AF%E0%B4%B2%E0%B4%BF%E0%B5%BB_%E0%B4%89%E0%B4%B1" title="മയലിൻ ഉറ - malayalam" lang="ml" hreflang="ml" data-title="മയലിൻ ഉറ" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Myeline" title="Myeline - olandese" lang="nl" hreflang="nl" data-title="Myeline" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Myelin" title="Myelin - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Myelin" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegese nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Myelin" title="Myelin - norvegese bokmål" lang="nb" hreflang="nb" data-title="Myelin" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Mielina" title="Mielina - occitano" lang="oc" hreflang="oc" data-title="Mielina" data-language-autonym="Occitan" data-language-local-name="occitano" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Os%C5%82onka_mielinowa" title="Osłonka mielinowa - polacco" lang="pl" hreflang="pl" data-title="Osłonka mielinowa" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Mielin%C4%83" title="Mielină - rumeno" lang="ro" hreflang="ro" data-title="Mielină" data-language-autonym="Română" data-language-local-name="rumeno" 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%9C%D0%B8%D0%B5%D0%BB%D0%B8%D0%BD" title="Миелин - russo" lang="ru" hreflang="ru" data-title="Миелин" data-language-autonym="Русский" data-language-local-name="russo" 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/Myelin" title="Myelin - Simple English" lang="en-simple" hreflang="en-simple" data-title="Myelin" 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/Myel%C3%ADn" title="Myelín - slovacco" lang="sk" hreflang="sk" data-title="Myelín" data-language-autonym="Slovenčina" data-language-local-name="slovacco" 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/Mielin" title="Mielin - sloveno" lang="sl" hreflang="sl" data-title="Mielin" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Mielina" title="Mielina - albanese" lang="sq" hreflang="sq" data-title="Mielina" data-language-autonym="Shqip" data-language-local-name="albanese" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9C%D0%B8%D1%98%D0%B5%D0%BB%D0%B8%D0%BD%D1%81%D0%BA%D0%B8_%D0%BE%D0%BC%D0%BE%D1%82%D0%B0%D1%87" title="Мијелински омотач - serbo" lang="sr" hreflang="sr" data-title="Мијелински омотач" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Myelin" title="Myelin - svedese" lang="sv" hreflang="sv" data-title="Myelin" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%9B%E0%B8%A5%E0%B8%AD%E0%B8%81%E0%B9%84%E0%B8%A1%E0%B8%AD%E0%B8%B5%E0%B8%A5%E0%B8%B4%E0%B8%99" title="ปลอกไมอีลิน - thailandese" lang="th" hreflang="th" data-title="ปลอกไมอีลิน" data-language-autonym="ไทย" data-language-local-name="thailandese" 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/Miyelin" title="Miyelin - turco" lang="tr" hreflang="tr" data-title="Miyelin" data-language-autonym="Türkçe" data-language-local-name="turco" 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%9C%D1%96%D1%94%D0%BB%D1%96%D0%BD" title="Мієлін - ucraino" lang="uk" hreflang="uk" data-title="Мієлін" data-language-autonym="Українська" data-language-local-name="ucraino" 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/Myelin" title="Myelin - vietnamita" lang="vi" hreflang="vi" data-title="Myelin" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%9B%E1%83%98%E1%83%94%E1%83%9A%E1%83%98%E1%83%9C%E1%83%98" title="მიელინი - mengrelio" lang="xmf" hreflang="xmf" data-title="მიელინი" data-language-autonym="მარგალური" data-language-local-name="mengrelio" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%AB%93%E7%A3%B7%E8%84%82" title="髓磷脂 - cinese" lang="zh" hreflang="zh" data-title="髓磷脂" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E9%AB%93%E7%A3%B7%E8%84%82" title="髓磷脂 - cantonese" lang="yue" hreflang="yue" data-title="髓磷脂" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</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/Q105790271#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</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="Namespace"> <div id="p-associated-pages" 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</div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</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="it" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r133964453">.mw-parser-output .avviso .mbox-text-div>div,.mw-parser-output .avviso .mbox-text-full-div>div{font-size:90%}.mw-parser-output .avviso .mbox-image{flex-basis:52px;flex-grow:0;flex-shrink:0}.mw-parser-output .avviso .mbox-text-full-div .hide-when-compact{display:block}</style><div style="" class="ambox metadata plainlinks avviso avviso-contenuto"> <div class="avviso-immagine mbox-image noprint"><span typeof="mw:File"><a href="/wiki/File:Question_book-4.svg" class="mw-file-description" title="Niente fonti!"><img alt="Niente fonti!" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/45px-Question_book-4.svg.png" decoding="async" width="45" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/68px-Question_book-4.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/90px-Question_book-4.svg.png 2x" data-file-width="262" data-file-height="204" /></a></span></div> <div class="avviso-testo mbox-text"> <div class="mbox-text-div"><b>Questa voce o sezione  sugli argomenti citologia e neurologia <a href="/wiki/Wikipedia:Uso_delle_fonti" title="Wikipedia:Uso delle fonti">non cita le fonti necessarie</a> o quelle presenti sono insufficienti</b>. <div class="hide-when-compact"> <div class="noprint"><hr />Puoi <a class="external text" href="https://it.wikipedia.org/w/index.php?title=Guaina_mielinica&action=edit">migliorare questa voce</a> aggiungendo citazioni da <a href="/wiki/Wikipedia:Fonti_attendibili" title="Wikipedia:Fonti attendibili">fonti attendibili</a> secondo le <a href="/wiki/Wikipedia:Uso_delle_fonti" title="Wikipedia:Uso delle fonti">linee guida sull'uso delle fonti</a>. Segui i suggerimenti del <a href="/wiki/Progetto:Citologia" class="mw-redirect" title="Progetto:Citologia">progetto di riferimento</a>.</div> </div> </div> </div> </div> <div style="float: right; clear: right; margin: 0 0 1em 1.5em; text-align: center"> <p><b>Struttura tipica di un <a href="/wiki/Neurone" title="Neurone">neurone</a></b> </p> <div style="position: relative; background-color: #f8f9fa; border: 1px solid #c8ccd1; padding: 0.3em"><span typeof="mw:File"><a href="/wiki/File:Neuron_Hand-tuned2.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Neuron_Hand-tuned2.svg/400px-Neuron_Hand-tuned2.svg.png" decoding="async" width="400" height="215" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Neuron_Hand-tuned2.svg/600px-Neuron_Hand-tuned2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Neuron_Hand-tuned2.svg/800px-Neuron_Hand-tuned2.svg.png 2x" data-file-width="1179" data-file-height="634" /></a></span> <div style="position:absolute; left:50px; top:2px"><a href="/wiki/Dendrite_(biologia)" title="Dendrite (biologia)">Dendrite</a></div> <div style="position:absolute; left:135px; top:62px"><a href="/wiki/Soma_(biologia)" title="Soma (biologia)">Soma</a></div> <div style="position:absolute; left:189px; top:116px"><a href="/wiki/Assone" title="Assone">Assone</a></div> <div style="position:absolute; left:149px; top:82px"><a href="/wiki/Cono_d%27emergenza" title="Cono d'emergenza">Monticolo assonico</a></div> <div style="position:absolute; left:13px; top:197px"><a href="/wiki/Nucleo_cellulare" title="Nucleo cellulare">Nucleo</a></div> <div style="position:absolute; left:189px; top:57px"><a href="/wiki/Nodi_di_Ranvier" title="Nodi di Ranvier">Nodo di Ranvier</a></div> <div style="position:absolute; left:319px; top:0px"><a href="/w/index.php?title=Terminale_assonico&action=edit&redlink=1" class="new" title="Terminale assonico (la pagina non esiste)">Terminale assonico</a></div> <div style="position:absolute; left:274px; top:161px"><a href="/wiki/Cellula_di_Schwann" title="Cellula di Schwann">Cellula di Schwann</a></div> <div style="position:absolute; left:184px; top:187px"><a class="mw-selflink selflink">Guaina mielinica</a></div> </div> </div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Myelinated_neuron.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Myelinated_neuron.jpg/220px-Myelinated_neuron.jpg" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Myelinated_neuron.jpg/330px-Myelinated_neuron.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Myelinated_neuron.jpg/440px-Myelinated_neuron.jpg 2x" data-file-width="600" data-file-height="600" /></a><figcaption> La guaina mielinica (cerchi concentrici scuri) avvolge l'assone di un neurone al cui interno sono visibili cisterne di <a href="/wiki/Reticolo_endoplasmatico" title="Reticolo endoplasmatico">reticolo endoplasmatico</a> liscio. Sezione trasversale ottenuta al <a href="/wiki/Microscopio_elettronico_a_trasmissione" title="Microscopio elettronico a trasmissione">microscopio elettronico a trasmissione</a></figcaption></figure> <p>La <b>guaina mielinica</b> è una struttura biancastra multilamellare e con funzioni isolanti, che avvolge gli <a href="/wiki/Assone" title="Assone">assoni</a> dei <a href="/wiki/Neuroni" class="mw-redirect" title="Neuroni">neuroni</a> dei <a href="/wiki/Vertebrati" class="mw-redirect" title="Vertebrati">Vertebrati</a>, formando la <a href="/wiki/Fibra_nervosa" class="mw-redirect" title="Fibra nervosa">fibra nervosa</a>. Essa non è altro che la <a href="/wiki/Membrana_plasmatica" class="mw-redirect" title="Membrana plasmatica">membrana plasmatica</a> delle cellule della neuroglia o <a href="/wiki/Glia" class="mw-redirect" title="Glia">glia</a> che vanno a rivestire il neurone. La differenza principale tra questa membrana e le altre è che possiede una quantità di lipidi maggiore. Nel <a href="/wiki/Sistema_nervoso_centrale" title="Sistema nervoso centrale">sistema nervoso centrale</a> le cellule che rivestono l'assone sono gli <a href="/wiki/Glia#Oligodendrociti" class="mw-redirect" title="Glia">oligodendrociti</a>, mentre nel <a href="/wiki/Sistema_nervoso_periferico" title="Sistema nervoso periferico">sistema nervoso periferico</a> sono le <a href="/wiki/Cellula_di_Schwann" title="Cellula di Schwann">cellule di Schwann</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Dettagli">Dettagli</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Guaina_mielinica&veaction=edit&section=1" title="Modifica la sezione Dettagli" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Guaina_mielinica&action=edit&section=1" title="Edit section's source code: Dettagli"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>È costituita da lembi a doppia membrana di cellule gliali ripetutamente avvolti attorno all'<a href="/wiki/Assone" title="Assone">assone</a>, gli <a href="/wiki/Glia#Oligodendrociti" class="mw-redirect" title="Glia">oligodendrociti</a> (nel <a href="/wiki/Sistema_nervoso_centrale" title="Sistema nervoso centrale">sistema nervoso centrale</a>) o le <a href="/wiki/Cellula_di_Schwann" title="Cellula di Schwann">cellule di Schwann</a> (nel <a href="/wiki/Sistema_nervoso_periferico" title="Sistema nervoso periferico">periferico</a>). Un oligodendrocita può mielinizzare fino a 60 assoni differenti, mentre le cellule di Schwann mielinizzano un solo assone. A causa del prevalente contributo della <a href="/wiki/Membrana_cellulare" title="Membrana cellulare">membrana cellulare</a>, la guaina mielinica (o semplicemente <i>mielina</i>) consiste di circa il 40% di acqua e per il 60% di componente solida; tale componente solida è a sua volta composta di <a href="/wiki/Lipide" class="mw-redirect" title="Lipide">lipidi</a> (79%), <a href="/wiki/Proteina" class="mw-redirect" title="Proteina">proteine</a> (18%) e tracce di <a href="/wiki/Carboidrati" class="mw-redirect" title="Carboidrati">carboidrati</a>. </p><p>La membrana cellulare, o <a href="/wiki/Plasmalemma" class="mw-redirect" title="Plasmalemma">plasmalemma</a>, delle cellule di Schwann va a disporsi attorno all'unico assone, formando una struttura a doppia membrana (mesassone), che si allunga e si avvolge a spirale, in strati concentrici, attorno all'assone stesso. Durante questo processo di avvolgimento, il <a href="/wiki/Citoplasma" title="Citoplasma">citoplasma</a> della Cellula di Schwann viene "spremuto" all'esterno, mentre le superfici delle membrane a contatto finiscono per condensarsi andando a formare le lamelle della guaina mielinica definitiva. </p><p>La guaina mielinica avvolge gli assoni in modo discontinuo: si interrompe infatti a intervalli regolari nei cosiddetti "<a href="/wiki/Nodi_di_Ranvier" title="Nodi di Ranvier">nodi di Ranvier</a>", lo spazio fra due cellule di Schwann consecutive, in corrispondenza di questi punti l'assone è quindi parzialmente scoperto. Si permette così, per mezzo di un meccanismo a salti da un nodo di Ranvier al successivo, la propagazione del segnale elettrico molto più rapidamente (fino a 150 m/s) che non negli assoni senza guaina mielinica. Se l'impulso dovesse percorrere l'intero assone, la velocità dell'impulso si ridurrebbe infatti a soli 5 m/s. </p> <div class="mw-heading mw-heading2"><h2 id="Malattie">Malattie</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Guaina_mielinica&veaction=edit&section=2" title="Modifica la sezione Malattie" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Guaina_mielinica&action=edit&section=2" title="Edit section's source code: Malattie"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Possiamo distinguere tra malattie acquisite, come la <a href="/wiki/Sclerosi_multipla" title="Sclerosi multipla">sclerosi multipla</a>, e malattie metaboliche ereditarie, dette <a href="/wiki/Leucodistrofie" class="mw-redirect" title="Leucodistrofie">leucodistrofie</a>. Si dicono "demielinizzanti" le malattie del primo gruppo, in cui la mielina viene attaccata e distrutta ad opera del <a href="/wiki/Sistema_immunitario" title="Sistema immunitario">sistema immunitario</a>. Nel secondo caso il problema è legato a fattori genetici, e quindi alla formazione difettosa della mielina; in questo caso si parla di malattie "dismielinizzanti". </p><p>Recentemente, sono stati scoperti dei meccanismi attraverso i quali <a href="/wiki/Cellule_staminali" class="mw-redirect" title="Cellule staminali">cellule staminali</a> possono raggiungere zone neurali lese da malattie degenerative, e trasformarsi in cellule produttrici di mielina o addirittura in cellule di rivestimento (<a href="/wiki/Cellula_di_Schwann" title="Cellula di Schwann">Cellula di Schwann</a>, <a href="/wiki/Cellula_della_glia" title="Cellula della glia">Cellula della glia</a>, eccetera). </p> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Guaina_mielinica&veaction=edit&section=3" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Guaina_mielinica&action=edit&section=3" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Sclerosi_multipla" title="Sclerosi multipla">Sclerosi multipla</a></li> <li><a href="/wiki/Polineuropatia_demielinizzante_infiammatoria_cronica" title="Polineuropatia demielinizzante infiammatoria cronica">Polineuropatia demielinizzante infiammatoria cronica</a></li> <li><a href="/wiki/Sindrome_di_Guillain-Barr%C3%A9" title="Sindrome di Guillain-Barré">Sindrome di Guillain-Barré</a></li> <li><a href="/wiki/Adrenoleucodistrofia" title="Adrenoleucodistrofia">Adrenoleucodistrofia</a></li> <li><a href="/wiki/Sfingomielina" title="Sfingomielina">Sfingomielina</a></li> <li><a href="/wiki/Mielinizzazione" title="Mielinizzazione">Mielinizzazione</a></li> <li><a href="/wiki/Conduzione_saltatoria" title="Conduzione saltatoria">Conduzione saltatoria</a></li> <li><a href="/wiki/Gastrite_cronica_atrofica_autoimmune" title="Gastrite cronica atrofica autoimmune">Gastrite cronica atrofica autoimmune</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Guaina_mielinica&veaction=edit&section=4" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Guaina_mielinica&action=edit&section=4" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li class="mw-empty-elt"></li> <li><cite id="CITEREFSapere.it" class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://www.sapere.it/enciclopedia/mielina.html"><span style="font-style:italic;">mielina</span></a>, su <span style="font-style:italic;">sapere.it</span>, <a href="/wiki/De_Agostini" title="De Agostini">De Agostini</a>.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q105790271#P6706" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li> <li><cite id="CITEREFBritannica.com" class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://www.britannica.com/science/myelin"><span style="font-style:italic;">myelin</span></a>, su <span style="font-style:italic;"><a href="/wiki/Enciclopedia_Britannica" title="Enciclopedia Britannica">Enciclopedia Britannica</a></span>, Encyclopædia Britannica, Inc.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q105790271#P1417" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li></ul> <style data-mw-deduplicate="TemplateStyles:r141815314">.mw-parser-output .navbox{border:1px solid #aaa;clear:both;margin:auto;padding:2px;width:100%}.mw-parser-output .navbox th{padding-left:1em;padding-right:1em;text-align:center}.mw-parser-output .navbox>tbody>tr:first-child>th{background:#ccf;font-size:90%;width:100%;color:var(--color-base,black)}.mw-parser-output .navbox_navbar{float:left;margin:0;padding:0 10px 0 0;text-align:left;width:6em}.mw-parser-output .navbox_title{font-size:110%}.mw-parser-output .navbox_abovebelow{background:#ddf;font-size:90%;font-weight:normal}.mw-parser-output .navbox_group{background:#ddf;font-size:90%;padding:0 10px;white-space:nowrap}.mw-parser-output .navbox_list{font-size:90%;width:100%}.mw-parser-output .navbox_list a{white-space:nowrap}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_odd{background:#fdfdfd;color:var(--color-base,black)}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_even{background:#f7f7f7;color:var(--color-base,black)}.mw-parser-output .navbox a.mw-selflink{color:var(--color-base,black)}.mw-parser-output .navbox_center{text-align:center}.mw-parser-output .navbox .navbox_image{padding-left:7px;vertical-align:middle;width:0}.mw-parser-output .navbox+.navbox{margin-top:-1px}.mw-parser-output .navbox .mw-collapsible-toggle{font-weight:normal;text-align:right;width:7em}body.skin--responsive .mw-parser-output .navbox_image img{max-width:none!important}.mw-parser-output .subnavbox{margin:-3px;width:100%}.mw-parser-output .subnavbox_group{background:#e6e6ff;padding:0 10px}@media screen{html.skin-theme-clientpref-night .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-night .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-night .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-os .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-os .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}</style><table class="navbox mw-collapsible mw-collapsed noprint metadata" id="navbox-Tessuto_nervoso"><tbody><tr><th colspan="3"><div class="navbox_navbar"><div class="noprint plainlinks" style="background-color:transparent; padding:0; font-size:xx-small; color:var(--color-base, #000000); white-space:nowrap;"><a href="/wiki/Template:Tessuto_nervoso" title="Template:Tessuto nervoso"><span title="Vai alla pagina del template">V</span></a> · <a href="/w/index.php?title=Discussioni_template:Tessuto_nervoso&action=edit&redlink=1" class="new" title="Discussioni template:Tessuto nervoso (la pagina non esiste)"><span title="Discuti del template">D</span></a> · <a class="external text" href="https://it.wikipedia.org/w/index.php?title=Template:Tessuto_nervoso&action=edit"><span title="Modifica il template. Usa l'anteprima prima di salvare">M</span></a></div></div><span class="navbox_title"><a href="/wiki/Istologia" title="Istologia">Istologia</a>: <a href="/wiki/Tessuto_nervoso" title="Tessuto nervoso">tessuto nervoso</a></span></th></tr><tr><th colspan="1" class="navbox_group" style="text-align:right;"><a href="/wiki/Neurone" title="Neurone">Neuroni</a> (<a href="/wiki/Sostanza_grigia" title="Sostanza grigia">sostanza grigia</a>)</th><td colspan="1" class="navbox_list navbox_odd" style="text-align:left;"><a href="/wiki/Soma_(medicina)" class="mw-redirect" title="Soma (medicina)">Soma</a> <b>·</b> <a href="/wiki/Assone" title="Assone">Assone</a> (<a href="/wiki/Cono_d%27emergenza" title="Cono d'emergenza">cono d'emergenza</a>, <a href="/wiki/Assoplasma" title="Assoplasma">assoplasma</a>, <a href="/w/index.php?title=Assolemma&action=edit&redlink=1" class="new" title="Assolemma (la pagina non esiste)">assolemma</a>, <a href="/wiki/Neurofilamento" title="Neurofilamento">neurofibrilla/neurofilamento</a>) <b>·</b> <a href="/wiki/Dendrite_(biologia)" title="Dendrite (biologia)">Dendrite</a> (<a href="/w/index.php?title=Spina_denditrica&action=edit&redlink=1" class="new" title="Spina denditrica (la pagina non esiste)">spina denditrica</a>, <a href="/wiki/Dendrite_apicale" title="Dendrite apicale">dendrite apicale</a>, <a href="/w/index.php?title=Dendrite_basale&action=edit&redlink=1" class="new" title="Dendrite basale (la pagina non esiste)">dendrite basale</a>) <i>tipi</i>: <a href="/wiki/Cellula_piramidale" title="Cellula piramidale">Cellula piramidale</a> <b>·</b> <a href="/wiki/Cellula_di_Purkinje" class="mw-redirect" title="Cellula di Purkinje">Cellula di Purkinje</a></td><td rowspan="8" class="navbox_image"><figure class="mw-halign-right" typeof="mw:File"><a href="/wiki/File:Pyramidal_hippocampal_neuron_40x.jpg" class="mw-file-description" title="Tessuto nervoso"><img alt="Tessuto nervoso" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Pyramidal_hippocampal_neuron_40x.jpg/100px-Pyramidal_hippocampal_neuron_40x.jpg" decoding="async" width="100" height="76" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Pyramidal_hippocampal_neuron_40x.jpg/150px-Pyramidal_hippocampal_neuron_40x.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Pyramidal_hippocampal_neuron_40x.jpg/200px-Pyramidal_hippocampal_neuron_40x.jpg 2x" data-file-width="1344" data-file-height="1024" /></a><figcaption>Tessuto nervoso</figcaption></figure></td></tr><tr><th colspan="1" class="navbox_group" style="text-align:right;"><a href="/wiki/Fibre_afferenti" title="Fibre afferenti">Fibre afferenti</a></th><td colspan="1" class="navbox_list navbox_even" style="text-align:left;"><a href="/w/index.php?title=Fibre_afferenti_somatiche_generali&action=edit&redlink=1" class="new" title="Fibre afferenti somatiche generali (la pagina non esiste)">GSA</a> <b>·</b> <a href="/w/index.php?title=Fibre_afferenti_viscerali_generali&action=edit&redlink=1" class="new" title="Fibre afferenti viscerali generali (la pagina non esiste)">GVA</a> <b>·</b> <i>fibre</i> <a href="/w/index.php?title=A_alfa&action=edit&redlink=1" class="new" title="A alfa (la pagina non esiste)">Aα</a> (<a href="/wiki/Fusi_neuromuscolari" class="mw-redirect" title="Fusi neuromuscolari">Ia</a>, <a href="/wiki/Organo_tendineo_del_Golgi" title="Organo tendineo del Golgi">Ib</a>), <a href="/w/index.php?title=Fibra_sensoriale_tipo_II&action=edit&redlink=1" class="new" title="Fibra sensoriale tipo II (la pagina non esiste)">II o Aβ</a>, <a href="/w/index.php?title=Fibra_A_gamma&action=edit&redlink=1" class="new" title="Fibra A gamma (la pagina non esiste)">Aγ</a>, <a href="/w/index.php?title=Fibra_A_delta&action=edit&redlink=1" class="new" title="Fibra A delta (la pagina non esiste)">III o Aδ o del dolore veloce</a>, <a href="/w/index.php?title=Fibra_B&action=edit&redlink=1" class="new" title="Fibra B (la pagina non esiste)">B del sistema nervoso autonomo</a>, <a href="/w/index.php?title=Fibra_C&action=edit&redlink=1" class="new" title="Fibra C (la pagina non esiste)">IV o C o del dolore lento</a>)</td></tr><tr><th colspan="1" class="navbox_group" style="text-align:right;"><a href="/wiki/Fibre_efferenti" title="Fibre efferenti">Fibre efferenti</a></th><td colspan="1" class="navbox_list navbox_odd" style="text-align:left;"><a href="/w/index.php?title=Fibre_efferenti_somatiche_generali&action=edit&redlink=1" class="new" title="Fibre efferenti somatiche generali (la pagina non esiste)">GSE</a> <b>·</b> <a href="/w/index.php?title=Fibre_efferenti_viscerali_generali&action=edit&redlink=1" class="new" title="Fibre efferenti viscerali generali (la pagina non esiste)">GVE</a> <b>·</b> <a href="/w/index.php?title=Fibre_efferenti_somatiche_speciali&action=edit&redlink=1" class="new" title="Fibre efferenti somatiche speciali (la pagina non esiste)">SSE</a> <b>·</b> <a href="/wiki/Neurone_motorio_superiore" title="Neurone motorio superiore">Neurone motorio superiore</a> <b>·</b> <a href="/w/index.php?title=Neurone_motorio_inferiore&action=edit&redlink=1" class="new" title="Neurone motorio inferiore (la pagina non esiste)">Neurone motorio inferiore</a> (<a href="/w/index.php?title=Neurone_motorio_alfa&action=edit&redlink=1" class="new" title="Neurone motorio alfa (la pagina non esiste)">neurone motorio α</a>, <a href="/w/index.php?title=Neurone_motorio_gamma&action=edit&redlink=1" class="new" title="Neurone motorio gamma (la pagina non esiste)">neurone motorio γ</a>)</td></tr><tr><th colspan="1" class="navbox_group" style="text-align:right;"><a href="/wiki/Sinapsi" title="Sinapsi">Sinapsi</a></th><td colspan="1" class="navbox_list navbox_even" style="text-align:left;"><a href="/wiki/Neuropilo" title="Neuropilo">Neuropilo</a> <b>·</b> <a href="/wiki/Vescicola_sinaptica" class="mw-redirect" title="Vescicola sinaptica">Vescicola sinaptica</a> <b>·</b> <a href="/wiki/Giunzione_neuromuscolare" title="Giunzione neuromuscolare">Giunzione neuromuscolare</a> <b>·</b> <a href="/wiki/Sinapsi_elettrica" title="Sinapsi elettrica">Sinapsi elettrica</a> <b>·</b> <a href="/wiki/Interneurone" title="Interneurone">Interneurone</a> (<a href="/wiki/Cellula_di_Renshaw" class="mw-redirect" title="Cellula di Renshaw">Renshaw</a>)</td></tr><tr><th colspan="1" class="navbox_group" style="text-align:right;"><a href="/wiki/Recettore_sensoriale" class="mw-redirect" title="Recettore sensoriale">Recettori sensoriali</a></th><td colspan="1" class="navbox_list navbox_odd" style="text-align:left;"><a href="/w/index.php?title=Terminazione_libera&action=edit&redlink=1" class="new" title="Terminazione libera (la pagina non esiste)">Terminazione libera</a> <b>·</b> <a href="/wiki/Corpuscolo_di_Meissner" title="Corpuscolo di Meissner">Corpuscolo di Meissner</a> <b>·</b> <a href="/wiki/Cellula_di_Merkel" title="Cellula di Merkel">Cellula di Merkel</a> <b>·</b> <a href="/wiki/Fuso_neuromuscolare" title="Fuso neuromuscolare">Fuso neuromuscolare</a> <b>·</b> <a href="/wiki/Corpuscolo_di_Pacini" title="Corpuscolo di Pacini">Corpuscolo di Pacini</a> <b>·</b> <a href="/wiki/Corpuscolo_di_Ruffini" title="Corpuscolo di Ruffini">Corpuscolo di Ruffini</a> <b>·</b> <a href="/w/index.php?title=Neurone_sensoriale_olfattivo&action=edit&redlink=1" class="new" title="Neurone sensoriale olfattivo (la pagina non esiste)">Neurone sensoriale olfattivo</a> <b>·</b> <a href="/wiki/Fotorecettore" title="Fotorecettore">Fotorecettore</a> <b>·</b> <a href="/wiki/Cellula_ciliata" title="Cellula ciliata">Cellula ciliata</a> <b>·</b> <a href="/wiki/Papilla_gustativa" class="mw-redirect" title="Papilla gustativa">Papilla gustativa</a></td></tr><tr><th colspan="1" class="navbox_group" style="text-align:right;"><a href="/wiki/Cellula_della_glia" title="Cellula della glia">Cellule gliali</a></th><td colspan="1" class="navbox_list navbox_even" style="text-align:left;"><a href="/wiki/Astrocita" title="Astrocita">Astrocita</a> <b>·</b> <a href="/wiki/Oligodendrocita" title="Oligodendrocita">Oligodendrocita</a> <b>·</b> <a href="/wiki/Ependima" title="Ependima">Cellule ependimali</a> <b>·</b> <a href="/wiki/Microglia" title="Microglia">Microglia</a></td></tr><tr><th colspan="1" class="navbox_group" style="text-align:right;"><a href="/wiki/Mielina" class="mw-redirect" title="Mielina">Mielina</a> (<a href="/wiki/Sostanza_bianca" title="Sostanza bianca">sostanza bianca</a>)</th><td colspan="1" class="navbox_list navbox_odd" style="text-align:left;"><a href="/wiki/Cellula_di_Schwann" title="Cellula di Schwann">Cellula di Schwann</a> <b>·</b> <a href="/wiki/Oligodendrocita" title="Oligodendrocita">Oligodendrocita</a> <b>·</b> <a href="/wiki/Nodi_di_Ranvier" title="Nodi di Ranvier">Nodi di Ranvier</a> <b>·</b> <a href="/wiki/Incisure_di_Schmidt-Lanterman" title="Incisure di Schmidt-Lanterman">Incisure di Schmidt-Lanterman</a></td></tr><tr><th colspan="1" class="navbox_group" style="text-align:right;"><a href="/wiki/Tessuto_connettivo" title="Tessuto connettivo">Tessuti connettivi</a> correlati</th><td colspan="1" class="navbox_list navbox_even" style="text-align:left;"><a href="/wiki/Epinevrio" title="Epinevrio">Epinevrio</a> <b>·</b> <a href="/wiki/Perinevrio" title="Perinevrio">Perinevrio</a> <b>·</b> <a href="/wiki/Endonevrio" title="Endonevrio">Endonevrio</a> <b>·</b> <a href="/wiki/Meningi" title="Meningi">Meningi</a></td></tr><tr><th colspan="3" class="navbox_abovebelow">Gli alti tre tessuti: <a href="/wiki/Tessuto_epiteliale" title="Tessuto epiteliale">Tessuto epiteliale</a><b> ·</b> <a href="/wiki/Tessuto_connettivo" title="Tessuto connettivo">Tessuto connettivo</a><b> ·</b> <a href="/wiki/Tessuto_muscolare" title="Tessuto muscolare">Tessuto muscolare</a></th></tr></tbody></table> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div 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