{"id":7409,"date":"2026-07-23T14:02:46","date_gmt":"2026-07-23T11:02:46","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/barrera-placentaria\/"},"modified":"2026-07-23T14:02:52","modified_gmt":"2026-07-23T11:02:52","slug":"barrera-placentaria","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/es\/glosario\/barrera-placentaria\/","title":{"rendered":"Barrera placentaria"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">La barrera placentaria (del griego <em>plakus<\/em> \u2014 torta) es la barrera entre la sangre de la madre embarazada y la del feto en la placenta, que posee una permeabilidad selectiva en dos direcciones.<\/p>\n\n<p class=\"wp-block-paragraph\">Act\u00faa como filtro, asegurando la nutrici\u00f3n y la respiraci\u00f3n del organismo en desarrollo, al mismo tiempo que lo protege de la mayor\u00eda de los microorganismos.<\/p>\n\n<h2 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;\" class=\"wp-block-heading\"><strong>Etiolog\u00eda y fisiopatolog\u00eda<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">La base morfol\u00f3gica de la barrera est\u00e1 compuesta por los tejidos de las vellosidades del corion del feto, que contactan con la sangre materna. <\/p>\n\n<p class=\"wp-block-paragraph\">La permeabilidad de la barrera cambia durante el embarazo, aumentando significativamente para el tercer trimestre.<\/p>\n\n<p class=\"wp-block-paragraph\">La barrera posee una selectividad inmunol\u00f3gica \u00fanica. Por ejemplo, permite el paso de anticuerpos maternos de clase IgG, proporcionando inmunidad pasiva al reci\u00e9n nacido. Sin embargo, los anticuerpos m\u00e1s grandes de clase IgM no pueden atravesarla. <\/p>\n\n<h2 id=\"h-&#x43A;&#x43B;&#x438;&#x43D;&#x438;&#x447;&#x435;&#x441;&#x43A;&#x43E;&#x435;-&#x437;&#x43D;&#x430;&#x447;&#x435;&#x43D;&#x438;&#x435;\" class=\"wp-block-heading\"><strong>Importancia cl\u00ednica<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">El estado de la barrera placentaria determina el riesgo de infecci\u00f3n intrauterina. En la pr\u00e1ctica m\u00e9dica, esto tiene una importancia clave en varios aspectos:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>atenci\u00f3n a las infecciones TORCH<\/strong> \u2014 los agentes causantes de estas enfermedades pueden superar la protecci\u00f3n de la placenta y causar graves malformaciones;<\/li>\n\n\n\n<li><strong>evaluaci\u00f3n de la seguridad de medicamentos<\/strong> \u2014 al prescribir medicamentos a las embarazadas, el factor clave es la capacidad de la mol\u00e9cula para atravesar la barrera placentaria;<\/li>\n\n\n\n<li><strong>creaci\u00f3n de un \u00abescudo farmacol\u00f3gico\u00bb<\/strong> \u2014 la terapia de ciertas infecciones en embarazadas est\u00e1 destinada a mantener la concentraci\u00f3n del medicamento, impidiendo la transferencia del microbio al feto.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La barrera placentaria (del griego <em>plakus<\/em> \u2014 torta) es la barrera entre la sangre de la madre embarazada y la del feto en la placenta, que posee una permeabilidad selectiva en dos direcciones.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-7409","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>Barrera placentaria: definici\u00f3n m\u00e9dica y descripci\u00f3n | Voka Wiki<\/title>\n<meta name=\"description\" content=\"La barrera placentaria (del griego plakus \u2014 torta) es la barrera entre la sangre de la madre embarazada y la del feto en la placenta, que posee una permeabilidad selectiva en dos direcciones.\" \/>\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\/barrera-placentaria\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Barrera placentaria\" \/>\n<meta property=\"og:description\" content=\"La barrera placentaria (del griego plakus \u2014 torta) es la barrera entre la sangre de la madre embarazada y la del feto en la placenta, que posee una permeabilidad selectiva en dos direcciones.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/wiki.voka.io\/es\/glosario\/barrera-placentaria\/\" \/>\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=\"2026-07-23T11:02:52+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\\\/barrera-placentaria\\\/\",\"url\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/barrera-placentaria\\\/\",\"name\":\"Barrera placentaria: definici\u00f3n m\u00e9dica y descripci\u00f3n | Voka Wiki\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/#website\"},\"datePublished\":\"2026-07-23T11:02:46+00:00\",\"dateModified\":\"2026-07-23T11:02:52+00:00\",\"description\":\"La barrera placentaria (del griego plakus \u2014 torta) es la barrera entre la sangre de la madre embarazada y la del feto en la placenta, que posee una permeabilidad selectiva en dos direcciones.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/barrera-placentaria\\\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/barrera-placentaria\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/wiki.voka.io\\\/es\\\/glosario\\\/barrera-placentaria\\\/#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\":\"Barrera placentaria\"}]},{\"@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":"Barrera placentaria: definici\u00f3n m\u00e9dica y descripci\u00f3n | Voka Wiki","description":"La barrera placentaria (del griego plakus \u2014 torta) es la barrera entre la sangre de la madre embarazada y la del feto en la placenta, que posee una permeabilidad selectiva en dos direcciones.","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\/barrera-placentaria\/","og_locale":"es_ES","og_type":"article","og_title":"Barrera placentaria","og_description":"La barrera placentaria (del griego plakus \u2014 torta) es la barrera entre la sangre de la madre embarazada y la del feto en la placenta, que posee una permeabilidad selectiva en dos direcciones.","og_url":"https:\/\/wiki.voka.io\/es\/glosario\/barrera-placentaria\/","og_site_name":"Voka Wiki","article_publisher":"https:\/\/www.facebook.com\/VOKA3DAnatomyAndPathology\/","article_modified_time":"2026-07-23T11:02:52+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\/barrera-placentaria\/","url":"https:\/\/wiki.voka.io\/es\/glosario\/barrera-placentaria\/","name":"Barrera placentaria: definici\u00f3n m\u00e9dica y descripci\u00f3n | Voka Wiki","isPartOf":{"@id":"https:\/\/wiki.voka.io\/es\/#website"},"datePublished":"2026-07-23T11:02:46+00:00","dateModified":"2026-07-23T11:02:52+00:00","description":"La barrera placentaria (del griego plakus \u2014 torta) es la barrera entre la sangre de la madre embarazada y la del feto en la placenta, que posee una permeabilidad selectiva en dos direcciones.","breadcrumb":{"@id":"https:\/\/wiki.voka.io\/es\/glosario\/barrera-placentaria\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/wiki.voka.io\/es\/glosario\/barrera-placentaria\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/wiki.voka.io\/es\/glosario\/barrera-placentaria\/#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":"Barrera placentaria"}]},{"@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\/7409","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=7409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}