A patient asks what mainly happens to the corpus luteum when pregnancy does not occur. Which response is correct?
Correct answer: A. It degenerates and hormone levels fall
- A. It degenerates and hormone levels fall
- B. It enlarges and produces human chorionic gonadotropin
- C. It changes into a mature ovarian follicle
- D. It moves into the uterine cavity for implantation
Explanation
When pregnancy does not occur, the corpus luteum degenerates, causing progesterone and oestrogen levels to fall. The hormone decline contributes to breakdown of the functional endometrium and menstruation.
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About Reproductive System
The reproductive system covers the male and female reproductive organs, gamete formation, the menstrual and ovarian cycles, fertilization, implantation and pregnancy. It explains the roles of FSH, LH, oestrogen, progesterone and testosterone, while distinguishing spermatogenesis from oogenesis and the reproductive organs from the accessory glands.
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