Why does obligatory water reabsorption take place in the descending limb of the loop of Henle?
A) It is highly permeable to water.
B) It is regulated by antidiuretic hormone.
C) It restricts the passage of water to the vasa recta.
D) It allows reabsorption through reverse osmosis.
E) It consists of both a thin segment and a thick segment.

Question

Quizplus · Accepted Answer

The descending limb of the loop of Henle is highly permeable to water, allowing for water reabsorption through osmosis without reabsorbing solutes. This is important in maintaining the concentration gradient necessary for the formation of concentrated urine.

Why Does Obligatory Water Reabsorption Take Place in the Descending