In human reproductive physiology, where does fertilization of the secondary oocyte by a sperm cell normally occur within the female reproductive tract?
Answer and explanation
Correct answer: D. the ampulla of the Fallopian tube
- Step 1: Ovulation releases the secondary oocyte into the peritoneal cavity, captured by fimbriae into the Fallopian tube. Step 2. Fertilization normally occurs in the upper third (ampulla) of the Fallopian tube. Step 3. The resulting blastocyst migrates into the uterus for implantation. Answer: the ampulla of the Fallopian tube (oviduct). Why not the others: The endometrium is the site of implantation, not fertilization; the cervix is the neck of the uterus; the ovarian follicle releases the egg.
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