Menstruation in the adult female is most directly the result of:
Correct answer: D. Decreased secretion of progesterone and estrogen by corpus luteum
- A. Decreased FSH secretion
- B. Decreased LH secretion
- C. Absence of chorionic gonadotropin
- D. Decreased secretion of progesterone and estrogen by corpus luteum
Explanation
Menstruation occurs when the corpus luteum regresses due to decreased secretion of progesterone and estrogen. This leads to the shedding of the uterine lining.
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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