{"id":89241,"date":"2001-09-03T00:00:00","date_gmt":"2001-09-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/contribucion-al-desarrollo-de-las-articulaciones-de-la-cadena-osicular-timpanico-en-fetos-humanos\/"},"modified":"2001-09-03T00:00:00","modified_gmt":"2001-09-03T00:00:00","slug":"contribucion-al-desarrollo-de-las-articulaciones-de-la-cadena-osicular-timpanico-en-fetos-humanos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/contribucion-al-desarrollo-de-las-articulaciones-de-la-cadena-osicular-timpanico-en-fetos-humanos\/","title":{"rendered":"Contribuci\u00f3n al desarrollo de las articulaciones de la cadena osicular timpanico en fetos humanos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Luis Gonz\u00e1lez Mart\u00ednez <\/strong><\/h2>\n<p>Hemos estudiado el desarrollo de las articulaciones de la cadena osicular timp\u00e1nica en fetos humanos. Para ello se han estudiado 24 series embrio-fetales de edades comprendidas entre 36 d\u00edas (14 mm) y 29 semanas (270 mm).  una vez realizadas las mediciones para datar cronol\u00f3gicamente al feto, se llev\u00f3 a cabo una minuciosa y cuidada disecci\u00f3n de los temporales en bloque; posteriormente fueron fijados en formol al 10%, descalcificados con \u00e1cidos n\u00edtrico al 2%, deshidratados en alcoholes a concentraciones progresivamente crecientes, inclu\u00eddos en parafina, cortados en serie a 7 um., Y te\u00f1idos en serie con las t\u00e9cnicas de hematoxilina-eosina y tricr\u00f3mico de martins.  la articulaci\u00f3n incudo-maleolar exhibe las caracter\u00edsticas de una diatrosis en encaje rec\u00edproco. Su primordio aparece a las 7 semanas de desarrollo, la formaci\u00f3n de una interzona trilaminar a las 8 semanas, los primeros signos de cavitaci\u00f3n a las 9 semanas y la presencia de una cavidad articular a las 10 semanas. La presencia de un cart\u00edlago hialino que recubre las superficies articulares del martillo y del yunque se observa a partir de las 20 semanas de desarrollo, estando completamente diferenciado a partir de las 26 semanas cada c\u00e1psula a base de finos haces de col\u00e1geno de disposici\u00f3n fibrilar.  la articulaci\u00f3n incudo-estapedial durante el desarrollo presenta las caracter\u00edsticas t\u00edpicas de una diatrosis tipo enatrosis. El primordio de esta articulaci\u00f3n aparece a las 7 semanas de desarrollo, la formaci\u00f3n de una interzona homog\u00e9nea a las 7 semanas manteni\u00e9ndose como tal hasta las 12 semanas, y no completa sus cavitaci\u00f3n hasta las 16 semanas de desarrollo. hasta las 29 semanas de desarrollo no hemos observado la presencia de un cart\u00edlago hialino en las superficies articulares del yunque y el estribo a nivel de su articulaci\u00f3n. Durante su desarrollo la articulaci\u00f3n incudo-estapedial presenta un ligamente capsular robusta a base de densas fibras de c<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Contribuci\u00f3n al desarrollo de las articulaciones de la cadena osicular timpanico en fetos humanos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Contribuci\u00f3n al desarrollo de las articulaciones de la cadena osicular timpanico en fetos humanos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Luis Gonz\u00e1lez Mart\u00ednez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 09\/03\/2001<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Rene Sarrat Torreguitart<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: arturo Vera gil <\/li>\n<li>pedro Ramos calvo (vocal)<\/li>\n<li>Mar\u00eda del carmen P\u00e9rez castej\u00f3n (vocal)<\/li>\n<li> Crovetto de la torre Miguel angel (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Luis Gonz\u00e1lez Mart\u00ednez Hemos estudiado el desarrollo de las articulaciones de la cadena osicular timp\u00e1nica en fetos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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