What is the most important trigger for aldosterone release?
A) blood buffers
B) thirst mechanism
C) antidiuretic hormone (ADH)
D) renin-angiotensin mechanism

Question

Quizplus · Accepted Answer

The most important trigger for aldosterone release is the renin-angiotensin mechanism. This mechanism is activated when there is a decrease in blood pressure or blood volume, causing the release of renin from the kidneys. Renin then cleaves angiotensinogen to form angiotensin I, which is further converted to angiotensin II by the enzyme ACE (angiotensin converting enzyme) found in the lungs. Angiotensin II stimulates the release of aldosterone from the adrenal cortex, leading to increased sodium and water reabsorption and potassium excretion in the kidneys. This helps to restore blood volume and blood pressure.

What Is the Most Important Trigger for Aldosterone Release