{"id":1695,"date":"2025-11-13T14:50:03","date_gmt":"2025-11-13T11:50:03","guid":{"rendered":"https:\/\/wiki.dev.voka.io\/glossary\/tissu-caverneux\/"},"modified":"2025-11-13T14:50:05","modified_gmt":"2025-11-13T11:50:05","slug":"tissu-caverneux","status":"publish","type":"glossary_item","link":"https:\/\/wiki.dev.voka.io\/fr\/glossaire\/tissu-caverneux\/","title":{"rendered":"Tissu caverneux"},"content":{"rendered":"\n<p>Le tissu caverneux est un tissu sp\u00e9cialis\u00e9 \u00e0 structure spongieuse constitu\u00e9 d&rsquo;un r\u00e9seau de cavit\u00e9s vasculaires interconnect\u00e9es (cavernes) s\u00e9par\u00e9es par des septums de muscle et de tissu conjonctif.  Sa principale propri\u00e9t\u00e9 est sa capacit\u00e9 \u00e0 changer nettement de volume et d&rsquo;\u00e9lasticit\u00e9 en se remplissant de sang.<\/p>\n\n<p>Ce tissu est avant tout le syst\u00e8me hydraulique du corps, capable de passer d&rsquo;un \u00e9tat souple et d\u00e9tendu \u00e0 un \u00e9tat tendu et hypertrophi\u00e9. Ce processus est r\u00e9gul\u00e9 par le syst\u00e8me nerveux autonome.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x441;&#x442;&#x440;&#x43E;&#x435;&#x43D;&#x438;&#x435;-&#x438;-&#x43C;&#x435;&#x445;&#x430;&#x43D;&#x438;&#x437;&#x43C;-&#x434;&#x435;&#x439;&#x441;&#x442;&#x432;&#x438;&#x44F;\"><strong>Structure et m\u00e9canisme d&rsquo;action<\/strong><\/h2>\n\n<p>La structure du tissu consiste en de nombreuses cavit\u00e9s (lacunes) tapiss\u00e9es d&rsquo;endoth\u00e9lium et des cloisons s\u00e9paratrices (trab\u00e9cules) contenant des cellules musculaires lisses. Le m\u00e9canisme d&rsquo;action est universel\u00a0: lorsque les muscles lisses se rel\u00e2chent, les art\u00e8res se dilatent et le sang remplit les lacunes\u00a0; lorsque les muscles se contractent, les art\u00e8res se resserrent et le sang s&rsquo;\u00e9coule.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x444;&#x443;&#x43D;&#x43A;&#x446;&#x438;&#x438;-&#x438;-&#x43B;&#x43E;&#x43A;&#x430;&#x43B;&#x438;&#x437;&#x430;&#x446;&#x438;&#x44F;\"><strong>Fonctions et localisation<\/strong><\/h2>\n\n<p>Bien que la structure du tissu soit la m\u00eame, celui-ci est utilis\u00e9 par l&rsquo;organisme pour des t\u00e2ches diff\u00e9rentes\u00a0:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Fonction \u00e9rectile.<\/strong> Dans les corps caverneux du p\u00e9nis et du clitoris, le sang qui remplit le tissu, entour\u00e9 d&rsquo;une membrane dense, cr\u00e9e la pression \u00e9lev\u00e9e et la duret\u00e9 (rigidit\u00e9) n\u00e9cessaires aux rapports sexuels.<\/li>\n\n\n\n<li><strong>Fonction r\u00e9gulatrice.<\/strong> Dans la muqueuse des fosses nasales, ce tissu se gonfle et s&rsquo;affaisse pour r\u00e9guler le flux d&rsquo;air, en le r\u00e9chauffant et en l&rsquo;humidifiant sans cr\u00e9er de rigidit\u00e9 excessive.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x43A;&#x43B;&#x438;&#x43D;&#x438;&#x447;&#x435;&#x441;&#x43A;&#x43E;&#x435;-&#x437;&#x43D;&#x430;&#x447;&#x435;&#x43D;&#x438;&#x435;\"><strong>Importance clinique<\/strong><\/h2>\n\n<p>Les troubles du fonctionnement du tissu caverneux sont \u00e0 l&rsquo;origine d&rsquo;un certain nombre de pathologies. Dans les organes g\u00e9nitaux, son dysfonctionnement entra\u00eene des troubles de l&rsquo;\u00e9rection ou un priapisme. Dans le nez, elle entra\u00eene une congestion chronique dans les rhinites vasomotrices ou hypertrophiques.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le tissu caverneux est un tissu sp\u00e9cialis\u00e9 \u00e0 structure spongieuse constitu\u00e9 d&rsquo;un r\u00e9seau de cavit\u00e9s vasculaires interconnect\u00e9es (cavernes) s\u00e9par\u00e9es par des septums de muscle et de tissu conjonctif.  Sa principale propri\u00e9t\u00e9 est sa capacit\u00e9 \u00e0 changer nettement de volume et d&rsquo;\u00e9lasticit\u00e9 en se remplissant de sang.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-1695","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Tissu caverneux : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"Le tissu caverneux est un tissu sp\u00e9cialis\u00e9 \u00e0 structure spongieuse constitu\u00e9 d&#039;un r\u00e9seau de cavit\u00e9s vasculaires interconnect\u00e9es (cavernes) s\u00e9par\u00e9es par des septums de muscle et de tissu conjonctif. 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