During a stressful interval, ________.
A) thyroid-stimulating hormone (TSH) stimulates the adrenal cortex and medulla to secrete acetylcholine
B) increased acid in the duodenum stimulates the S cells to release secretin
C) adrenocorticotropic hormone (ACTH) stimulates the adrenal cortex, and neurons of the sympathetic nervous system stimulate the adrenal medulla
D) the calcium levels in the blood are increased due to actions of two antagonistic hormones, epinephrine and norepinephrine

Question

Quizplus · Accepted Answer

During a stressful interval, the body initiates the hypothalamus-pituitary adrenal (HPA) axis. This releases adrenocorticotropic hormone (ACTH) from the pituitary gland. ACTH then stimulates the adrenal cortex to secrete cortisol, which ultimately helps the body cope with stress. Additionally, neurons of the sympathetic nervous system stimulate the adrenal medulla to secrete epinephrine and norepinephrine, which also help the body respond to stress.

During a Stressful Interval, ________