1 h 57 min, 6 nov 2002 ans - Fertilization
Description:
Sperm enter the vagina during intercourse and go through the cervix to penetrate the egg that developed during ovulation. A zygote is created that moves throgh the fallopian tubes. The zygote dividides to create more cells to become a blastocyst. The blastocyst then attaches to the uterus.Ajouté au bande de temps:
Date:
1 h 57 min, 6 nov 2002 ans
Maintenaint
~ Il y a 23 ans