The tubular filtrate osmolarity __________ as it flows through the ascending limb of the loop of Henle.
A)increases
B)decreases
C)remains unchanged

Question

Quizplus · Accepted Answer

The ascending limb of the loop of Henle is impermeable to water but allows the reabsorption of ions like Na+ and Cl-. As ions are reabsorbed, the osmolarity of the filtrate decreases, making it less concentrated than the interstitial fluid. This is important for the formation of dilute urine. Thus, the tubular filtrate osmolarity decreases as it flows through the ascending limb of the loop of Henle.

The Tubular Filtrate Osmolarity __________ as It Flows Through the Ascending