The Principal Hormone Secreted by the Corpus Luteum Is

Question

The principal hormone secreted by the corpus luteum is
A) LH.
B) FSH.
C) progesterone.
D) luteosterone.
E) estrogen.

Accepted Answer

The corpus luteum is a temporary endocrine gland that is formed after ovulation from the ruptured follicle in the ovary. It secretes high levels of progesterone to prepare the uterus for implantation of a fertilized egg. If fertilization doesn't occur, the corpus luteum shrinks and stops secreting hormones, leading to the onset of menstruation. Therefore, the principal hormone secreted by the corpus luteum is progesterone.