The descending limb of the loop of Henle .
A)is not permeable to water
B)contains fluid that becomes more concentrated as it moves down into the medulla
C)pulls water by osmosis into the lumen of the tubule
D)is freely permeable to sodium and urea

Question

Quizplus · Accepted Answer

The descending limb of the loop of Henle is permeable to water but not to sodium or urea. As a result, water moves out of the descending limb by osmosis, and the fluid in the descending limb becomes more concentrated as it moves down into the medulla.

The Descending Limb of the Loop of Henle