The migration of the embryo through the fallopian tube
While the fertilized oocyte develops into a morula and blastocyst and then hatches from the pellucid zone, it wanders from the ampulla through the fallopian tube into the uterine cavity, where it embeds itself in the endometrium at the end of the sixth day. The fertilized oocyte / embryo is transported via the movement of the cilia of the tubal epithelium and the contractions of its muscular layer.
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