Because of countercurrent multiplication, the loop of Henle is able to establish a vertical osmotic gradient in the renal medulla ranging from 300 to 1,200 mOsm/litre, despite the fact that the active salt pump of the ascending limb is able to produce only a 200 mOsm/litre osmotic gradient at each horizontal level.

Question

Quizplus · Accepted Answer

Countercurrent multiplication allows the loop of Henle to create a steep osmotic gradient in the renal medulla, exceeding the osmotic gradient produced by the active salt pump in the ascending limb at each horizontal level.

Because of Countercurrent Multiplication, the Loop of Henle Is Able