In a normal pregnant woman, the amount of total gonadotropin activity was assessed The result expected was

Options

A. high level of circulating FSH and LH in the uterus to stimulate implantation of the embryo
B. High level of circulating hCG to stimulate endometrial thickening
C. high levels of FSH and LH in uterus to stimulate endometrial thickening
D. high level of circulating hCG to stimulate estrogen and progesterone synthesis.

Answer

D

Explanation

Placenta acts as an endocrine gland during pregancey and produces several hormones including human chorionic gonadotropin (hCG). Estrogen, progesterone, etc. hCG stimulates the corpus luteunm to secrete progesterone.