Catecholamines are secreted from the adrenal medulla in response to
A)increased secretion of ACTH from the anterior pituitary
B)direct sympathetic nervous system stimulation
C)decreased androgen secretion from the adrenal cortex
D)a tropic hormone secreted by the pituitary
E)stimulation by chromaffin-releasing hormone

Question

Quizplus · Accepted Answer

Catecholamines are released from the adrenal medulla due to direct sympathetic nervous system stimulation. The sympathetic nervous system activates the adrenal medulla to release epinephrine and norepinephrine into the bloodstream, causing the "fight or flight" response. The other options do not accurately describe the mechanism of catecholamine secretion.

Catecholamines Are Secreted from the Adrenal Medulla in Response to