A surgical individual just arrived on the unit from the postanesthesia care unit.This person's respirations are four per minute and shallow.As the nurse calls for assistance, the person suddenly feels jittery, and breathing quickens.Which of the following feedback loops is operating for the nurse in this situation?
A)The central nervous system stimulates hypothalamus-releasing factor, which acts on the anterior pituitary gland to secrete thyroid-stimulating hormone (TSH) and stimulates the release of thyroxine (T4) and triiodothyronine (T3).
B)The central nervous system directly stimulates the release of insulin, which reduces blood glucose levels.
C)The central nervous system directly stimulates the adrenal medulla to secrete epinephrine and stimulates hypothalamus-releasing factor, which acts on the anterior pituitary gland to secrete adrenocorticotropic-stimulating hormone (ACTH), stimulating the release of cortisol.
D)The central nervous system stimulates the hypothalamus to synthesize oxytocin and antidiuretic hormone, which are secreted by the posterior pituitary, activating uterine contraction and renal absorption of water.

Question

Quizplus · Accepted Answer

The secretion of cortisol is regulated primarily by the hypothalamus and the anterior pituitary gland. In the hypothalamus, corticotropin-releasing hormone (CRH) is produced in several nuclei and stored in the median eminence. Once released, CRH travels through the portal vessels to stimulate the production of ACTH from pro-opiomelanocortin (POMC), β-lipotropin, γ-lipotropin, endorphins, and enkephalins by the anterior pituitary. ACTH is the main regulator of cortisol secretion and adrenocortical growth.

A Surgical Individual Just Arrived on the Unit from the Postanesthesia