What stimulus causes the release of atrial natriuretic hormone from the atria of the heart?
A)Decreased blood volume entering the atria
B)Increased blood volume entering the atria
C)Decreased blood pressure
D)Increased blood sodium levels

Question

Quizplus · Accepted Answer

Atrial natriuretic hormone (ANH) is synthesized and secreted by the atrial muscle cells in response to an increase in blood volume and stretching of the atria. When the atria are stretched, the ANH is released into the bloodstream to promote excretion of sodium and water in the kidneys, which decreases blood volume and blood pressure. ANH also opposes the actions of aldosterone and renin-angiotensin-aldosterone system, which promote sodium and water retention.

What Stimulus Causes the Release of Atrial Natriuretic Hormone from the Atria