FRHD 1020 Chapter Notes - Chapter 8: Contraceptive Vaginal Ring, Endometrial Cancer, Cervical Cap
12 Aug 2013
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Chapter 8: birth control choices and pregnancy summary. 1 sperm+ 1 egg = equals fertilized egg. Spermatogenesis (creation of sperm) starts in the male at puberty and is regulated by hormones. Sperm cells form in the seminiferous tubules of the testes and are passed into the epididymis where they are stored until ejaculation. A single ejaculation can contain 500 million sperm. Each woman is born with her lifetime supply of ova, eventually 300-500 eggs mature and leave the woman"s ovaries during ovulation. Every month one of the ovaries releases an ovum to the fallopian tube, where it travels through until it reaches the uterus. An unfertilized egg can last between 24-36 hours, after this time the egg will disintegrate, and is expelled during menstruation with the uterine lining. A sperm on the other hand can last between 2-5 days in the female reproductive tract, however sperm meeting egg does not guarantee fertilization.
