Two physiological responses to hypovolemia are _______ of blood vessels and the secretion of _______ by the posterior pituitary.
A) constriction; vasopressin
B) dilation; ANP
C) constriction; angiotensin II
D) dilation; insulin

Question

Quizplus · Accepted Answer

In response to hypovolemia or low blood volume, blood vessels will constrict to increase blood pressure and redirect blood flow to essential organs. Additionally, the posterior pituitary gland will secrete vasopressin (also known as antidiuretic hormone or ADH) which causes the kidneys to reabsorb water and thus conserve fluid in the body. This helps to increase blood volume and maintain blood pressure.

Two Physiological Responses to Hypovolemia Are _______ of Blood Vessels