{"id":7230,"date":"2026-05-04T16:12:18","date_gmt":"2026-05-04T13:12:18","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/aracnoide\/"},"modified":"2026-06-25T12:14:59","modified_gmt":"2026-06-25T09:14:59","slug":"aracnoide","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/","title":{"rendered":"Aracnoide"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">La meninges aracnoides (del griego <em>arachne<\/em>, que significa ara\u00f1a, y <em>eidos<\/em>, que significa forma o apariencia; del lat\u00edn <em>mater<\/em>, que significa madre o protectora) es la capa media de las tres meninges que protegen el sistema nervioso central. <\/p>\n\n<p class=\"wp-block-paragraph\">Es una membrana fin\u00edsima, transparente y sin vasos sangu\u00edneos propios, situada estrictamente entre la duramadre y la piamadre.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x44D;&#x442;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;-&#x438;-&#x43F;&#x430;&#x442;&#x43E;&#x444;&#x438;&#x437;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;\"><strong>Etiolog\u00eda y fisiopatolog\u00eda<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">Su nombre proviene de las numerosas hebras de tejido conectivo finas (trab\u00e9culas). Salen desde su superficie interna y se entrelazan formando una densa telara\u00f1a, que se adhiere a la piamadre subyacente.<\/p>\n\n<p class=\"wp-block-paragraph\">A diferencia de la piamadre, la membrana aracnoidea no penetra en los surcos y circunvoluciones del cerebro, sino que se extiende sobre ellos como una pel\u00edcula tensa. El espacio debajo de esta membrana est\u00e1 lleno de l\u00edquido cefalorraqu\u00eddeo. Esto crea un coj\u00edn hidrodin\u00e1mico ideal en el que est\u00e1 contenido el cerebro y amortigua los golpes. Externamente, la membrana aracnoidea se adhiere estrechamente a la duramadre, pero no se fusiona f\u00edsicamente con ella.<\/p>\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>Importancia cl\u00ednica<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">En traumatolog\u00eda, esta estructura anat\u00f3mica juega un papel crucial en la formaci\u00f3n de varios tipos de hemorragias. Las venas que la atraviesan, al romperse, pueden verter sangre sobre la membrana, formando un hematoma subdural. El da\u00f1o a las arterias que pasan por debajo de ella resulta en una hemorragia subaracnoidea.<\/p>\n\n<p class=\"wp-block-paragraph\">Adem\u00e1s, en casos de fracturas de cr\u00e1neo o impactos fuertes, la membrana aracnoidea puede desgarrarse. En este caso, el l\u00edquido cefalorraqu\u00eddeo escapa bajo presi\u00f3n y se acumula en forma de una lente de agua patol\u00f3gica, llamada higroma subdural. Esta acumulaci\u00f3n de l\u00edquido puede comprimir el cerebro tan intensamente como un co\u00e1gulo de sangre denso.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La meninges aracnoides (del griego <em>arachne<\/em>, que significa ara\u00f1a, y <em>eidos<\/em>, que significa forma o apariencia; del lat\u00edn <em>mater<\/em>, que significa madre o protectora) es la capa media de las tres meninges que protegen el sistema nervioso central. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-7230","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 v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Aracnoide: definici\u00f3n m\u00e9dica y descripci\u00f3n | Voka Wiki<\/title>\n<meta name=\"description\" content=\"La meninges aracnoides (del griego arachne, que significa ara\u00f1a, y eidos, que significa forma o apariencia; del lat\u00edn mater, que significa madre o protectora) es la capa media de las tres meninges que protegen el sistema nervioso central.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aracnoide\" \/>\n<meta property=\"og:description\" content=\"La meninges aracnoides (del griego arachne, que significa ara\u00f1a, y eidos, que significa forma o apariencia; del lat\u00edn mater, que significa madre o protectora) es la capa media de las tres meninges que protegen el sistema nervioso central.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/\" \/>\n<meta property=\"og:site_name\" content=\"Voka Wiki\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/VOKA3DAnatomyAndPathology\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-25T09:14:59+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/aracnoide\\\/\",\"url\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/aracnoide\\\/\",\"name\":\"Aracnoide: definici\u00f3n m\u00e9dica y descripci\u00f3n | Voka Wiki\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/#website\"},\"datePublished\":\"2026-05-04T13:12:18+00:00\",\"dateModified\":\"2026-06-25T09:14:59+00:00\",\"description\":\"La meninges aracnoides (del griego arachne, que significa ara\u00f1a, y eidos, que significa forma o apariencia; del lat\u00edn mater, que significa madre o protectora) es la capa media de las tres meninges que protegen el sistema nervioso central.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/aracnoide\\\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/aracnoide\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/aracnoide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Glosario\",\"item\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Aracnoide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/#website\",\"url\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/\",\"name\":\"Voka Wiki\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/#organization\"},\"alternateName\":\"Anatomy & Pathology Wiki by VOKA\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/#organization\",\"name\":\"Voka 3D Anatomy & Pathology\",\"alternateName\":\"VOKA\",\"url\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/wiki.voka.io\\\/wp-content\\\/uploads\\\/2025\\\/02\\\/cropped-voka-logo-1.png\",\"contentUrl\":\"https:\\\/\\\/wiki.voka.io\\\/wp-content\\\/uploads\\\/2025\\\/02\\\/cropped-voka-logo-1.png\",\"width\":70,\"height\":16,\"caption\":\"Voka 3D Anatomy & Pathology\"},\"image\":{\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/VOKA3DAnatomyAndPathology\\\/\",\"https:\\\/\\\/www.instagram.com\\\/voka.io\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/voka-io\\\/\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCqGGuOEpr62ScH8Pjk2q5zw\\\/videos\",\"https:\\\/\\\/www.pinterest.com\\\/VokaAnatomyPro\\\/\",\"https:\\\/\\\/www.threads.com\\\/@voka.io\"],\"description\":\"VOKA.io offers 3D medical animations and custom 3D modeling services. Our product, VOKA 3D Anatomy & Pathology, is a digital atlas with over 1,000 detailed 3D models of human anatomy and pathology, designed for medical education, training, and patient communication.\",\"email\":\"info@voka.io\",\"telephone\":\"+1 814 351 4442\",\"legalName\":\"Voka 3D Anatomy & Pathology\",\"foundingDate\":\"2017-02-12\",\"naics\":\"541512\",\"numberOfEmployees\":{\"@type\":\"QuantitativeValue\",\"minValue\":\"51\",\"maxValue\":\"200\"},\"publishingPrinciples\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/principios-de-publicacion\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Aracnoide: definici\u00f3n m\u00e9dica y descripci\u00f3n | Voka Wiki","description":"La meninges aracnoides (del griego arachne, que significa ara\u00f1a, y eidos, que significa forma o apariencia; del lat\u00edn mater, que significa madre o protectora) es la capa media de las tres meninges que protegen el sistema nervioso central.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/","og_locale":"es_ES","og_type":"article","og_title":"Aracnoide","og_description":"La meninges aracnoides (del griego arachne, que significa ara\u00f1a, y eidos, que significa forma o apariencia; del lat\u00edn mater, que significa madre o protectora) es la capa media de las tres meninges que protegen el sistema nervioso central.","og_url":"https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/","og_site_name":"Voka Wiki","article_publisher":"https:\/\/www.facebook.com\/VOKA3DAnatomyAndPathology\/","article_modified_time":"2026-06-25T09:14:59+00:00","twitter_card":"summary_large_image","twitter_misc":{"Tiempo de lectura":"1 minuto"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/","url":"https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/","name":"Aracnoide: definici\u00f3n m\u00e9dica y descripci\u00f3n | Voka Wiki","isPartOf":{"@id":"https:\/\/wiki.voka.io\/es\/#website"},"datePublished":"2026-05-04T13:12:18+00:00","dateModified":"2026-06-25T09:14:59+00:00","description":"La meninges aracnoides (del griego arachne, que significa ara\u00f1a, y eidos, que significa forma o apariencia; del lat\u00edn mater, que significa madre o protectora) es la capa media de las tres meninges que protegen el sistema nervioso central.","breadcrumb":{"@id":"https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/wiki.voka.io\/es\/glosario\/aracnoide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/wiki.voka.io\/es\/"},{"@type":"ListItem","position":2,"name":"Glosario","item":"https:\/\/wiki.voka.io\/es\/glosario\/"},{"@type":"ListItem","position":3,"name":"Aracnoide"}]},{"@type":"WebSite","@id":"https:\/\/wiki.voka.io\/es\/#website","url":"https:\/\/wiki.voka.io\/es\/","name":"Voka Wiki","description":"","publisher":{"@id":"https:\/\/wiki.voka.io\/es\/#organization"},"alternateName":"Anatomy & Pathology Wiki by VOKA","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/wiki.voka.io\/es\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"},{"@type":"Organization","@id":"https:\/\/wiki.voka.io\/es\/#organization","name":"Voka 3D Anatomy & Pathology","alternateName":"VOKA","url":"https:\/\/wiki.voka.io\/es\/","logo":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/wiki.voka.io\/es\/#\/schema\/logo\/image\/","url":"https:\/\/wiki.voka.io\/wp-content\/uploads\/2025\/02\/cropped-voka-logo-1.png","contentUrl":"https:\/\/wiki.voka.io\/wp-content\/uploads\/2025\/02\/cropped-voka-logo-1.png","width":70,"height":16,"caption":"Voka 3D Anatomy & Pathology"},"image":{"@id":"https:\/\/wiki.voka.io\/es\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/VOKA3DAnatomyAndPathology\/","https:\/\/www.instagram.com\/voka.io\/","https:\/\/www.linkedin.com\/company\/voka-io\/","https:\/\/www.youtube.com\/channel\/UCqGGuOEpr62ScH8Pjk2q5zw\/videos","https:\/\/www.pinterest.com\/VokaAnatomyPro\/","https:\/\/www.threads.com\/@voka.io"],"description":"VOKA.io offers 3D medical animations and custom 3D modeling services. Our product, VOKA 3D Anatomy & Pathology, is a digital atlas with over 1,000 detailed 3D models of human anatomy and pathology, designed for medical education, training, and patient communication.","email":"info@voka.io","telephone":"+1 814 351 4442","legalName":"Voka 3D Anatomy & Pathology","foundingDate":"2017-02-12","naics":"541512","numberOfEmployees":{"@type":"QuantitativeValue","minValue":"51","maxValue":"200"},"publishingPrinciples":"https:\/\/wiki.voka.io\/es\/principios-de-publicacion\/"}]}},"_links":{"self":[{"href":"https:\/\/wiki.voka.io\/es\/wp-json\/wp\/v2\/glossary_item\/7230","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wiki.voka.io\/es\/wp-json\/wp\/v2\/glossary_item"}],"about":[{"href":"https:\/\/wiki.voka.io\/es\/wp-json\/wp\/v2\/types\/glossary_item"}],"wp:attachment":[{"href":"https:\/\/wiki.voka.io\/es\/wp-json\/wp\/v2\/media?parent=7230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}