What embryo-produced hormone maintains progesterone and estrogen secretion by the corpus luteum through the first trimester of pregnancy?
A) luteinizing hormone (LH)
B) follicle-stimulating hormone (FSH)
C) progesterone
D) human chorionic gonadotropin (HCG)
E) gonadotropin-releasing hormone (GnRH)

Question

Quizplus · Accepted Answer

Human chorionic gonadotropin (HCG) is produced by the embryo and signals to the corpus luteum to continue producing progesterone and estrogen, which are important for maintaining the early stages of pregnancy. LH, FSH, and GnRH are involved in regulating the menstrual cycle and oocyte development but do not play a major role in supporting early pregnancy.

What Embryo-Produced Hormone Maintains Progesterone and Estrogen Secretion by the Corpus