Antes de iniciar la búsqueda de un embarazo, es ideal tomar todas las medidas precautorias para minimizar los riesgos inherentes al proceso, ya sea de la salud materna, como también de la embrionaria-fetal. Esto se debe evaluar en una visita con el especialista durante la planificación del embarazo, el que dará las indicaciones necesarias de acuerdo a cada caso en particular.
Las dos primeras semanas del ciclo corresponden al período preovulatorio, por lo tanto nada ha pasado aún. Entre el día 14 y 16 de un ciclo normal de 28 a 30 días, se produce la ovulación y al unirse el óvulo con el espermio se materializa la fecundación, dando origen a un nuevo embarazo y, por lo tanto, a una nueva vida.
ESQUEMA DE LA FECUNDACIÓN
Durante la tercera semana de este mes se transporta el huevo a la cavidad uterina; y durante la cuarta, se consolida la implantación del concepto en el endometrio materno.
Endometrio: capa interna de la pared del útero, que está formada por el “miometrio” –musculatura externa- y endometrio –mucosa interna-. Su función es recibir el huevo (ver oocito fertilizado) e implantarlo. En caso de ausencia de embarazo es el tejido sanguíneo que se pierde en la menstruación.
DESARROLLO DEL EMBRIÓN EN DÍAS
Edad (días) Características externas
1........................Oocito fertilizado
2 - 3....................Mórula (4-16 células)
4 .......................Blastocisto libre
5 - 6 ...................Anclaje del blastocisto en el endometrio
7 -12 .Implantación, embrión bilaminar con saco vitelino primario
13 -15 ......................Embrión trilaminar con nudo primitivo
1dia..2d..2, 1/2d..3d(morula)..4d(blastocitos)...5d(blastocitos)
6 comentarios:
oiee cual es la diferencia entre blastocisto y embrion ?
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