The most potent stimulus for vasopressin release is
A) plasma osmolarity.
B) blood volume.
C) blood pressure.
D) low potassium.

Question

Quizplus · Accepted Answer

Plasma osmolarity is the primary regulator of vasopressin release. When plasma osmolarity increases, such as during dehydration or high-salt intake, the hypothalamus releases vasopressin to conserve water and maintain osmotic balance in the body. Blood volume and pressure are secondary regulators of vasopressin release, while low potassium levels have little effect on its release.

The Most Potent Stimulus for Vasopressin Release Is