The overall purpose of the countercurrent exchange system is to __________.
A) supply salt and urea to the renal medulla
B) supply nutrients and oxygen to the renal cortex
C) supply nutrients and oxygen to the renal medulla
D) remove metabolic wastes from the renal cortex
E) remove metabolic wastes from the renal medulla

Question

Quizplus · Accepted Answer

The countercurrent exchange system in the kidney, particularly in the context of the loop of Henle and surrounding vasa recta, primarily functions to supply salt and urea to the renal medulla. This mechanism is crucial for maintaining the high osmolarity in the medulla, which is essential for the kidney's ability to concentrate urine and regulate water and salt balance in the body.

The Overall Purpose of the Countercurrent Exchange System Is to __________