Which of the Following Explains Why the Pregnant Woman Does

Question

Which of the following explains why the pregnant woman does not menstruate?
A) The secretion of hCG maintains the integrity of the corpus luteum.
B) The luteal secretion of estrogen and progesterone prevents the secretion of gonadotropins.
C) The luteal secretion of estrogen and progesterone prevents the adenohypophyseal secretion of FSH and LH.
D) All of the above are true.

Accepted Answer

During pregnancy, the secretion of human chorionic gonadotropin (hCG) maintains the integrity of the corpus luteum, which continues to produce estrogen and progesterone. These hormones prevent the secretion of gonadotropins (FSH and LH) from the adenohypophysis, which in turn prevents the growth and maturation of ovarian follicles and ultimately prevents menstruation. Therefore, all of the above statements are true.