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<title>Шванова клетка</title>
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<wx:section level="1" title="Шванова клетка" id="wxsec1"><h1 class="pagetitle" id="wx1">Шванова клетка</h1>

<wx:template id="wx_t1" pagename="Шаблон:Неврон" page_id="194513"/>
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<caption id="wx3"><b id="wx4">Структура на неврон</b></caption>

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<p id="wx7">Неврон</p>
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<div style="position: relative;" id="wx10"><a href="/wbg/%D0%9A%D0%B0%D1%80%D1%82%D0%B8%D0%BD%D0%BA%D0%B0:Neuron-no_labels.png" title="" wx:linktype="image" wx:pagename="Картинка:Neuron-no_labels.png" id="wx11"><img src="/wbg/%D0%9A%D0%B0%D1%80%D1%82%D0%B8%D0%BD%D0%BA%D0%B0:Neuron-no_labels.png" alt="" width="420" id="wx12"/></a> 

<div style="position: absolute; left:50px; top: 2px;" id="wx13"><a href="/wbg/%D0%94%D0%B5%D0%BD%D0%B4%D1%80%D0%B8%D1%82" title="Дендрит" wx:linktype="known" wx:pagename="Дендрит" wx:page_id="116482" id="wx14">Дендрит</a></div>

<div style="position: absolute; left:135px; top: 60px;" id="wx15"><a href="/wbg/%D0%A1%D0%BE%D0%BC%D0%B0_%28%D0%B1%D0%B8%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F%29" title="Сома (биология)" wx:linktype="known" wx:pagename="Сома_(биология)" wx:page_id="195021" id="wx16">Сома</a></div>

<div style="position: absolute; left:139px; top: 166px;" id="wx17"><a href="/wbg/%D0%90%D0%BA%D1%81%D0%BE%D0%BD" title="Аксон" wx:linktype="known" wx:pagename="Аксон" wx:page_id="116481" id="wx18">Аксон</a></div>

<div style="position: absolute; left:13px; top: 197px;" id="wx19"><a href="/wbg/%D0%9A%D0%BB%D0%B5%D1%82%D1%8A%D1%87%D0%BD%D0%BE_%D1%8F%D0%B4%D1%80%D0%BE" title="Клетъчно ядро" wx:linktype="known" wx:pagename="Клетъчно_ядро" wx:page_id="51921" id="wx20">Ядро</a></div>

<div style="position: absolute; left:226px; top: 38px;" id="wx21"><a href="/wbg/%D0%9F%D1%80%D0%B8%D1%89%D1%8A%D0%BF%D0%B2%D0%B0%D0%BD%D0%B5_%D0%BD%D0%B0_%D0%A0%D0%B0%D0%BD%D0%B2%D0%B8%D0%B5" class="new" title="Прищъпване на Ранвие" wx:linktype="unknown" wx:pagename="Прищъпване_на_Ранвие" id="wx22">Прищъпване на</a><br id="wx23"/>
<a href="/wbg/%D0%9F%D1%80%D0%B8%D1%89%D1%8A%D0%BF%D0%B2%D0%B0%D0%BD%D0%B5_%D0%BD%D0%B0_%D0%A0%D0%B0%D0%BD%D0%B2%D0%B8%D0%B5" class="new" title="Прищъпване на Ранвие" wx:linktype="unknown" wx:pagename="Прищъпване_на_Ранвие" id="wx24">Ранвие</a></div>

<div style="position: absolute; left:319px; top: 0px;" id="wx25"><a href="/wbg/%D0%9D%D0%B5%D1%80%D0%B2%D0%B5%D0%BD_%D1%81%D0%B8%D0%BD%D0%B0%D0%BF%D1%81" class="new" title="Нервен синапс" wx:linktype="unknown" wx:pagename="Нервен_синапс" id="wx26">Нервен синапс</a></div>

<div style="position: absolute; left:306px; top: 161px;" id="wx27"><a href="/wbg/%D0%A8%D0%B2%D0%B0%D0%BD%D0%BE%D0%B2%D0%B0_%D0%BA%D0%BB%D0%B5%D1%82%D0%BA%D0%B0" title="Шванова клетка" wx:linktype="self" wx:pagename="Шванова_клетка" wx:page_id="194517" id="wx28">Шванова клетка</a></div>

<div style="position: absolute; left:220px; top: 187px;" id="wx29"><a href="/wbg/%D0%9C%D0%B8%D0%B5%D0%BB%D0%B8%D0%BD%D0%BE%D0%B2%D0%B0_%D0%BE%D0%B1%D0%B2%D0%B8%D0%B2%D0%BA%D0%B0" class="new" title="Миелинова обвивка" wx:linktype="unknown" wx:pagename="Миелинова_обвивка" id="wx30">Миелинова обвивка</a></div>
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<p id="wx31"><b id="wx32">Швановите клетки</b> са наименовани на името на немския учен <a href="/wbg/%D0%A2%D0%B5%D0%BE%D0%B4%D0%BE%D1%80_%D0%A8%D0%B2%D0%B0%D0%BD" title="Теодор Шван" wx:linktype="known" wx:pagename="Теодор_Шван" wx:page_id="194522" id="wx33">Теодор Шван</a>. Представляват вид <a href="/wbg/%D0%9D%D0%B5%D0%B2%D1%80%D0%BE%D0%B3%D0%BB%D0%B8%D1%8F" class="new" title="Невроглия" wx:linktype="unknown" wx:pagename="Невроглия" id="wx34">глиални клетки</a> произвеждащи <a href="/wbg/%D0%9C%D0%B8%D0%B5%D0%BB%D0%B8%D0%BD" class="new" title="Миелин" wx:linktype="unknown" wx:pagename="Миелин" id="wx35">миелин</a> за миелиновите обвивки на <a href="/wbg/%D0%9D%D0%B5%D0%B2%D1%80%D0%BE%D0%BD" title="Неврон" wx:linktype="known" wx:pagename="Неврон" wx:page_id="58672" id="wx36">невроните</a>. Миелиновите обвивки изолират невроните в периферната нервна система (ПНС). Така не може да стане преплитане между нервните <a href="/wbg/%D0%90%D0%BA%D1%81%D0%BE%D0%BD" title="Аксон" wx:linktype="known" wx:pagename="Аксон" wx:page_id="116481" id="wx37">аксони</a> при движение на импулсите. Освен това се увеличава и скоростта без да се увеличава диаметъра на аксона. Швановите клетки непроизвеждащи миелин са отговорни за поддържането на аксона и оцеляването на неврона.</p>

<p id="wx38">Швановите клетки са аналози на олигодендроцитите намиращи се в централната нервна система (ЦНС).</p>

<p id="wx39">Те започват формирането на миелиновите обвивки в невроните на бозайниците още през зародишното развитие.</p>

<p id="wx40">Добре развита клетка има формата на свит на руло вестник със слоеве миелин между отделните навивки.</p>

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<div style="float: left; width: 32px; overflow: hidden;" id="wx41"><a href="/wbg/%D0%9A%D0%B0%D1%80%D1%82%D0%B8%D0%BD%D0%BA%D0%B0:Butterfly_template.gif" title="" wx:linktype="image" wx:pagename="Картинка:Butterfly_template.gif" id="wx42"><img src="/wbg/%D0%9A%D0%B0%D1%80%D1%82%D0%B8%D0%BD%D0%BA%D0%B0:Butterfly_template.gif" alt="" width="30" height="60" id="wx43"/></a></div>

<div style="margin-left: 37px;" id="wx44"><i id="wx45">Тази статия, свързана с <a href="/wbg/%D0%91%D0%B8%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F" title="Биология" wx:linktype="known" wx:pagename="Биология" wx:page_id="3013" id="wx46">биологията</a>, е все още <a href="/wbg/%D0%A3%D0%B8%D0%BA%D0%B8%D0%BF%D0%B5%D0%B4%D0%B8%D1%8F:%D0%9C%D1%8A%D0%BD%D0%B8%D1%87%D0%B5" class="new" title="Уикипедия:Мъниче" wx:linktype="unknown" wx:pagename="Уикипедия:Мъниче" id="wx47">мъниче</a>. Можете да помогнете на Уикипедия, като я <a href="http://wbg/wbg/index.php?title=%D0%A8%D0%B2%D0%B0%D0%BD%D0%BE%D0%B2%D0%B0_%D0%BA%D0%BB%D0%B5%D1%82%D0%BA%D0%B0&amp;action=edit" class="external text" wx:linktype="external" rel="nofollow" id="wx48">редактирате</a> и я разширите.</i></div>
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<a href="/wbg/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:Categories&amp;article=%D0%A8%D0%B2%D0%B0%D0%BD%D0%BE%D0%B2%D0%B0_%D0%BA%D0%BB%D0%B5%D1%82%D0%BA%D0%B0" title="Специални:Categories" wx:linktype="known" wx:pagename="Специални:Categories" id="wx49">Категории</a>: <span dir="ltr" id="wx50"><a href="/wbg/%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F:%D0%9D%D0%B5%D0%B2%D1%80%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F" title="Категория:Неврология" wx:linktype="known" wx:pagename="Категория:Неврология" wx:page_id="47604" id="wx51">Неврология</a></span> | <span dir="ltr" id="wx52"><a href="/wbg/%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F:%D0%9C%D1%8A%D0%BD%D0%B8%D1%87%D0%B5%D1%82%D0%B0_%D0%B7%D0%B0_%D0%B1%D0%B8%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F" title="Категория:Мъничета за биология" wx:linktype="known" wx:pagename="Категория:Мъничета_за_биология" wx:page_id="114495" id="wx53">Мъничета за биология</a></span></div>
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На други езици: <a href="http://ca.wikipedia.org/wiki/C%C3%A8l%C2%B7lula_de_Schwann" class="external" wx:linktype="interwiki" wx:pagename="ca:Cèl·lula_de_Schwann" id="wx54">Català</a> | <a href="http://de.wikipedia.org/wiki/Schwannsche_Zelle" class="external" wx:linktype="interwiki" wx:pagename="de:Schwannsche_Zelle" id="wx55">Deutsch</a> | <a href="http://en.wikipedia.org/wiki/Schwann_cell" class="external" wx:linktype="interwiki" wx:pagename="en:Schwann_cell" id="wx56">English</a> | <a href="http://es.wikipedia.org/wiki/C%C3%A9lula_de_Schwann" class="external" wx:linktype="interwiki" wx:pagename="es:Célula_de_Schwann" id="wx57">Español</a> | <a href="http://eu.wikipedia.org/wiki/Schwannen_zelula" class="external" wx:linktype="interwiki" wx:pagename="eu:Schwannen_zelula" id="wx58">Euskara</a> | <a href="http://fr.wikipedia.org/wiki/Cellule_de_Schwann" class="external" wx:linktype="interwiki" wx:pagename="fr:Cellule_de_Schwann" id="wx59">Français</a> | <a href="http://it.wikipedia.org/wiki/Cellula_di_Schwann" class="external" wx:linktype="interwiki" wx:pagename="it:Cellula_di_Schwann" id="wx60">Italiano</a> | <a href="http://he.wikipedia.org/wiki/%D7%AA%D7%90%D7%99_%D7%A9%D7%95%D7%95%D7%90%D7%9F" class="external" wx:linktype="interwiki" wx:pagename="he:תאי_שוואן" id="wx61">עברית</a> | <a href="http://lt.wikipedia.org/wiki/%C5%A0vano_l%C4%85stel%C4%97s" class="external" wx:linktype="interwiki" wx:pagename="lt:Švano_ląstelės" id="wx62">Lietuvių</a> | <a href="http://nl.wikipedia.org/wiki/Schwanncel" class="external" wx:linktype="interwiki" wx:pagename="nl:Schwanncel" id="wx63">Nederlands</a> | <a href="http://pl.wikipedia.org/wiki/Kom%C3%B3rka_Schwanna" class="external" wx:linktype="interwiki" wx:pagename="pl:Komórka_Schwanna" id="wx64">Polski</a> | <a href="http://pt.wikipedia.org/wiki/C%C3%A9lula_de_Schwann" class="external" wx:linktype="interwiki" wx:pagename="pt:Célula_de_Schwann" id="wx65">Português</a> | <a href="http://ro.wikipedia.org/wiki/Celul%C4%83_Schwann" class="external" wx:linktype="interwiki" wx:pagename="ro:Celulă_Schwann" id="wx66">Română</a> | <a href="http://sk.wikipedia.org/wiki/Schwannova_bunka" class="external" wx:linktype="interwiki" wx:pagename="sk:Schwannova_bunka" id="wx67">Slovenčina</a> | <a href="http://zh.wikipedia.org/wiki/%E8%A8%B1%E6%97%BA%E7%B4%B0%E8%83%9E" class="external" wx:linktype="interwiki" wx:pagename="zh:許旺細胞" id="wx68">中文</a></div>
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