What is the most direct function of the juxtaglomerular apparatus?
A) help regulate blood pressure and the rate of excretion by the kidneys
B) help regulate blood pressure and the rate of blood filtration by the kidneys
C) help regulate water and electrolyte excretion by the kidneys
D) help regulate urea absorption by the kidneys

Question

Quizplus · Accepted Answer

The juxtaglomerular apparatus helps regulate blood pressure and the rate of blood filtration by the kidneys through its control of the secretion of renin, a hormone involved in the renin-angiotensin-aldosterone system. This system regulates blood volume and blood pressure by constricting blood vessels and increasing reabsorption of sodium and water in the kidneys.

What Is the Most Direct Function of the Juxtaglomerular Apparatus