{"id":89008,"date":"2018-03-10T00:14:07","date_gmt":"2018-03-10T00:14:07","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/caractera%c2%adsticas-estructurales-y-formacion-del-carta%c2%adlago-carda%c2%adaco-en-vertebrados-amniotas\/"},"modified":"2018-03-10T00:14:07","modified_gmt":"2018-03-10T00:14:07","slug":"caractera%c2%adsticas-estructurales-y-formacion-del-carta%c2%adlago-carda%c2%adaco-en-vertebrados-amniotas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-agrarias\/caractera%c2%adsticas-estructurales-y-formacion-del-carta%c2%adlago-carda%c2%adaco-en-vertebrados-amniotas\/","title":{"rendered":"Caracter\u00edsticas estructurales y formaci\u00f3n del cart\u00edlago card\u00edaco en vertebrados amniotas."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Laura Olalla Sanchez <\/strong><\/h2>\n<p>Los objetivos de la presente tesis se refieren a la formaci\u00f3n y a las caracter\u00edsticas estructurales y ultraestructurales de los dep\u00f3sitos de cart\u00edlago que se presentna en el coraz\u00f3n de los vertebrados amniotas. Asimismo, se estudia la relaci\u00f3n existente entre la localizaci\u00f3n y el desarrollo de los focos cartilaginosos y la variaci\u00f3n morfol\u00f3gica a la que est\u00e1n sujetos los elementos card\u00edacos en los que aparecen dichos focos.  el material examinado ha consistido en corazones de tortuga (embriones, juveniles y adultos), de pollo y codorniz (embriones, juveniles ya dultos) y de h\u00e1mster sirio (juveniles y adultos). Adem\u00e1s se han estudiado los corazones de otras 68 especies de vertebrados. 38 de ellas eran de tele\u00f3steos. Dichas especies constituyen sendos modelos de reptiles, aves y mam\u00edferos. El material se ha estudiado a base de t\u00e9cncias histol\u00f3gicas e histoqu\u00edmicas para microscop\u00eda \u00f3ptica, t\u00e9cnicas histoqu\u00edmicas  in toto, t\u00e9cnicas inmunohistoqu\u00edmicas, tanto en cortes histol\u00f3gicos como in toto, cortes semifinos y microscop\u00eda electr\u00f3nica de transmisi\u00f3n. De los resultados obtenidos se desprenden las siguientes conclusiones principales.  1,- los focos cartilaginosos son, en su mayor\u00edam hialinos y se presentan principalmente en el tracto de salida card\u00edaco, incluyendo los que se encontraron en el bulbo arterioso de lso corazones de 4 especies de tel\u00e9osteos.  2,- en reptiles y aves, la formaci\u00f3n de los focos empieza durante la vida embrionaria; en los mam\u00edferos, inmediatamente tras el nacimiento.  3,- en reptiles y aves, la condrog\u00e9nesis se inicia en forma de condensaciones celulares procondrog\u00e9nicas; en los mam\u00edferos (h\u00e1mster) no se observan tales condensaciones.  4,- hay evidencias de que los precursores de los condrocitos son c\u00e9lulas procedentes de la cresta neural.  5,- en contra de los sugerido por otros autores, los presentes datos indican que las tensiones mec\u00e1nicas no son los facotres desencadena<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Caracter\u00edsticas estructurales y formaci\u00f3n del cart\u00edlago card\u00edaco en vertebrados amniotas.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Caracter\u00edsticas estructurales y formaci\u00f3n del cart\u00edlago card\u00edaco en vertebrados amniotas. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Laura Olalla Sanchez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 M\u00e1laga<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 23\/02\/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> Tor\u00e9s Montosa Juan  Antonio<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Rafael manuel Jimenez diaz <\/li>\n<li>Antonio De vicente moreno (vocal)<\/li>\n<li>julio cesar Tello marquina (vocal)<\/li>\n<li>angel Rodriguez tello (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Laura Olalla Sanchez Los objetivos de la presente tesis se refieren a la formaci\u00f3n y a las 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