A reproductive hormone that is secreted directly from a structure in the brain is ________.
A) testosterone
B) estradiol
C) progesterone
D) follicle-stimulating hormone (FSH)
E) gonadotropin-releasing hormone (GnRH)

Question

Quizplus · Accepted Answer

Gonadotropin-releasing hormone (GnRH) is a reproductive hormone secreted directly from the hypothalamus in the brain. GnRH stimulates the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the pituitary gland, which in turn regulate the production of testosterone, estradiol, and progesterone in the gonads. Therefore, while testosterone, estradiol, and progesterone are all reproductive hormones, they are not secreted directly from a structure in the brain.

A Reproductive Hormone That Is Secreted Directly from a Structure