Question

what stimulus causes the release of atrial natriuretic hormone from the atria of the heart?
a decreased blood volume relaxing the atria
b increased blood volume stretching the atria
c decreased blood pressure
d increased blood sodium levels

Explanation:

Atrial natriuretic hormone (ANH) is released from the atria of the heart when there is increased blood volume, which stretches the atrial walls. Option A is incorrect as decreased blood volume would not trigger ANH release. Option C (decreased blood pressure) and D (increased blood sodium levels) are not the primary stimuli for ANH release from the atria.

Answer:

B. Increased blood volume stretching the atria