Secretion of _____ is controlled mainly by the renin-angiotensin mechanism and blood potassium concentration.
A) aldosterone
B) cortisol
C) adrenal estrogens
D) norepinephrine

Question

Quizplus · Accepted Answer

The secretion of aldosterone is mainly controlled by the renin-angiotensin mechanism and blood potassium concentration. The renin-angiotensin mechanism regulates aldosterone secretion by increasing the release of renin from the kidneys in response to low blood pressure. Renin converts angiotensinogen to angiotensin I, which is then converted to angiotensin II by the angiotensin-converting enzyme (ACE). Angiotensin II stimulates the secretion of aldosterone from the adrenal cortex. Blood potassium concentration also regulates aldosterone secretion by directly stimulating the release of aldosterone from the adrenal cortex.

Secretion of _____ Is Controlled Mainly by the Renin-Angiotensin Mechanism