{"id":6911,"date":"2026-05-04T16:12:21","date_gmt":"2026-05-04T13:12:21","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/artere-meningee-moyenne\/"},"modified":"2026-06-01T13:04:24","modified_gmt":"2026-06-01T10:04:24","slug":"artere-meningee-moyenne","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossaire\/artere-meningee-moyenne\/","title":{"rendered":"Art\u00e8re m\u00e9ning\u00e9e moyenne"},"content":{"rendered":"\n

L’art\u00e8re m\u00e9ning\u00e9e moyenne (du lat. arteria meningea media<\/em>, o\u00f9 meninx<\/em> signifie m\u00e9ninge) est le plus grand vaisseau sanguin qui assure l’irrigation art\u00e9rielle de la dure-m\u00e8re et des os de la vo\u00fbte cr\u00e2nienne. <\/p>\n\n

Une l\u00e9sion de cette art\u00e8re est la principale cause de la formation d’h\u00e9matomes \u00e9piduraux aigus \u00e0 haut risque de mortalit\u00e9.<\/p>\n\n

\u00c9tiologie et physiopathologie<\/strong><\/h2>\n\n

Cette puissante art\u00e8re est une branche de l’art\u00e8re maxillaire et p\u00e9n\u00e8tre dans la cavit\u00e9 cr\u00e2nienne par un petit foramen \u00e9pineux \u00e0 sa base. Une fois \u00e0 l’int\u00e9rieur, l’art\u00e8re se ramifie en un vaste r\u00e9seau qui se situe dans l’espace \u00e9pidural \u00e9troit \u2014 pr\u00e9cis\u00e9ment entre la dure-m\u00e8re et l’os.<\/p>\n\n

Le segment le plus vuln\u00e9rable est la branche ant\u00e9rieure de l’art\u00e8re. Elle suit la surface interne de l’\u00e9caille de l’os temporal dans la zone qui est appel\u00e9e le pt\u00e9rion. C’est l’endroit le plus fin et le plus fragile de l’ensemble de la vo\u00fbte cr\u00e2nienne. L’art\u00e8re ici n’est pas simplement adjacente \u00e0 l’os, mais s’ins\u00e8re souvent dans une rainure osseuse profonde, ce qui prive le vaisseau de toute \u00e9lasticit\u00e9 et mobilit\u00e9.<\/p>\n\n

Importance clinique<\/strong><\/h2>\n\n

En cas de traumatisme de la r\u00e9gion temporale, m\u00eame sans grande force, l’os se fracture facilement. Les bords aigus de la fracture d\u00e9chirent l’art\u00e8re qui y est int\u00e9gr\u00e9e. Puisque le sang dans l’art\u00e8re est sous haute pression, il commence \u00e0 s’\u00e9couler rapidement dans l’espace \u00e9pidural, d\u00e9tachant la dure-m\u00e8re.<\/p>\n\n

Cette masse de sang commence \u00e0 comprimer le cerveau de l’ext\u00e9rieur. La situation \u00e9volue si rapidement que sans craniotomie d’urgence, retrait du caillot et contr\u00f4le de l’h\u00e9morragie, le patient peut mourir en quelques heures apr\u00e8s le traumatisme. <\/p>\n","protected":false},"excerpt":{"rendered":"

L’art\u00e8re m\u00e9ning\u00e9e moyenne (du lat. arteria meningea media<\/em>, o\u00f9 meninx<\/em> signifie m\u00e9ninge) est le plus grand vaisseau sanguin qui assure l’irrigation art\u00e9rielle de la dure-m\u00e8re et des os de la vo\u00fbte cr\u00e2nienne. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-6911","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"\nArt\u00e8re m\u00e9ning\u00e9e moyenne : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"L'art\u00e8re m\u00e9ning\u00e9e moyenne (du lat. arteria meningea media, o\u00f9 meninx signifie m\u00e9ninge) est le plus grand vaisseau sanguin qui assure l'irrigation art\u00e9rielle de la dure-m\u00e8re et des os de la vo\u00fbte cr\u00e2nienne.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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