Which hormones of the HPA axis stimulate the synthesis of epinephrine by chromaffin cells?
A)growth hormone-releasing hormone (GHRH)
B)adrenocorticotropic hormone (ACTH)
C)thyrotropin-releasing hormone (TRH)
D)gonadotropin-releasing hormone (GnRH)

Question

Quizplus · Accepted Answer

Adrenocorticotropic hormone (ACTH) stimulates the synthesis of cortisol by the adrenal cortex and also stimulates the synthesis of epinephrine and norepinephrine by chromaffin cells. Growth hormone-releasing hormone (GHRH) stimulates the release of growth hormone from the anterior pituitary, not the adrenal gland. Thyrotropin-releasing hormone (TRH) stimulates the release of thyroid-stimulating hormone (TSH) from the anterior pituitary. Gonadotropin-releasing hormone (GnRH) stimulates the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the anterior pituitary.

Which Hormones of the HPA Axis Stimulate the Synthesis of Epinephrine