Question

Atrial natriuretic peptide

A.) inhibits release of renin.
B.) stimulates release of renin.
C.) increases GFR.
D.) increases GFR and inhibits release of renin.
E.) increases GFR and stimulates release of renin.

Answer 1

Atrial natriuretic peptide (ANP) increases GFR and inhibits the release of renin, playing a key role in reducing blood volume and blood pressure.

Step-by-step explanation:

The atrial natriuretic peptide (ANP) plays a crucial role in the regulation of blood pressure by causing vasodilation, promoting diuresis, and influencing the excretion of sodium and water. ANP is released by cells in the atria of the heart in response to stretching caused by increased blood volume and works to decrease blood pressure and blood volume. One of the ways ANP achieves this is by inhibiting the release of renin, which is part of the renin-angiotensin-aldosterone system that typically leads to increased blood pressure and volume. Moreover, ANP also leads to an increase in the glomerular filtration rate (GFR), which results in more sodium and water being filtered into the urine and thus further contributes to lowering blood pressure. Therefore, the correct answer to the question of what atrial natriuretic peptide (ANP) does is it increases GFR and inhibits the release of renin (D).