{"id":40555,"date":"1999-01-01T00:00:00","date_gmt":"1999-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/el-sustrato-anatomico-de-los-reflejos-auditivos-en-la-rata\/"},"modified":"1999-01-01T00:00:00","modified_gmt":"1999-01-01T00:00:00","slug":"el-sustrato-anatomico-de-los-reflejos-auditivos-en-la-rata","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/el-sustrato-anatomico-de-los-reflejos-auditivos-en-la-rata\/","title":{"rendered":"El sustrato anatomico de los reflejos auditivos en la rata."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Fernando Rodriguez Nodal <\/strong><\/h2>\n<p>Los reflejos del o\u00eddo medio, de orientaci\u00f3n y de sobresalto se caracterizan por presentar una corta latencia y ser provocados por sonidos de gran intensidad o inesperados. empleando t\u00e9cnicas de trazado neuronal, hemos estudiado la proyecci\u00f3n de los n\u00facleos cocleares a la formaci\u00f3n reticular magnocelular pontina, considerada el \u00e1rea premotora y coordinadora para la mayor\u00eda de los reflejos ac\u00fastico motores. tras inyectar trazadores retr\u00f3grados en la formaci\u00f3n reticular y anter\u00f3grados en los n\u00facleos cocleares, hemos determinado que las neuronas de la ra\u00edz coclear proyectan el n\u00facleo motor del facial ipsilateral, bilateralmente al n\u00facleo lateral paragigantocelular y al n\u00facleo reticular pontocaudal y contralateralmente al n\u00facleo reticular pontooral, al n\u00facleo tegmental ventrolateral, a la regi\u00f3n de las c\u00e9lulas horizontales en el lemnisco lateral y a las cepas profundas del col\u00edculo superior. Otros tipos neuronales que proyectan al n\u00facleo reticular pontocaudal son ipsilateralmente las neuronas multipolares del n\u00facleo coclear ventral y contralateralmente las neuronas fusiformes del n\u00facleo coclear dorsal. Experimentos de doble trazado neuronal, combinado la inyecci\u00f3n de biocitina o dextrano biotinado en la ra\u00edz coclear con la inyecci\u00f3n de la subunidad b de la toxina col\u00e9rica o fluorogold en la m\u00e9dula espinl, muestran que las neuronas de la ra\u00edz coclear proyectan directamente sobre neuronas gigantes reticuloespinales del n\u00facleo reticular pontocaudal. Esta proyecci\u00f3n puede constituir el sustrato anat\u00f3mico del reflejo de sobresalto en la rata. As\u00ed mismo las neuronas de la ra\u00edz coclear y del n\u00facleo coclear ventral proyectan al n\u00facleo lateral paragigantocelular donde se sit\u00faan las motoneuronas que inervan el m\u00fasculo del estapedio que interviene en el reflejo de o\u00eddo medio. El reflejo de orientaci\u00f3n puede estar mediado por la proyecci\u00f3n de las neuronas de la ra\u00edz al n\u00facleo reticular pontocaudal y al n\u00facl<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>El sustrato anatomico de los reflejos auditivos en la rata.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 El sustrato anatomico de los reflejos auditivos en la rata. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Fernando Rodriguez Nodal <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Salamanca<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1999<\/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>Mar\u00eda  Dolores Estilita Lopez Garcia<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Miguel angel Merchan cifuentes <\/li>\n<li>ricardo Insausti serrano (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Delgado Garc\u00eda (vocal)<\/li>\n<li> Juiz gomez Jos\u00e9 Manuel (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Fernando Rodriguez Nodal Los reflejos del o\u00eddo medio, de orientaci\u00f3n y de sobresalto se caracterizan por presentar [&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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