Which of the Following is Not True of the Adrenal

Question

Which of the following is not true of the adrenal medulla?
A) It is the inner portion of the adrenal gland.
B) It secretes epinephrine.
C) It is the target organ for ACTH.
D) All of the above are true of the adrenal medulla.

Accepted Answer

The adrenal medulla is not the target organ for ACTH. ACTH stimulates the adrenal cortex to secrete hormones such as cortisol, but it does not directly affect the adrenal medulla which secretes epinephrine and norepinephrine in response to sympathetic nervous system stimulation.