oboestr Posted April 22, 2014 Share Posted April 22, 2014 I think the ovum released during ovulation is viable for a couple days, after which it disintegrates if not fertilized within that period. Do we have any insight into why the secretory phase of the menstrual cycle (humans of course) lasts fourteen days in preparation of a fertilized egg (zygote) developing into a blastocyst and implanting into the uterine endometrium? Link to comment Share on other sites More sharing options...
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