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

Question

Quizplus · Accepted Answer

The descending limb of the nephron loop is permeable to water but not to solutes, allowing water to leave the tubule and causing the fluid to become more concentrated as it moves deeper into the medulla.

The Descending Limb of the Nephron Loop ________