In the ascending limb of the nephron loop (loop of Henle), the:
A) movement of water and solutes is passive.
B) thick segment is permeable to water but impermeable to sodium and chloride ions.
C) thick segment is impermeable to water but permeable to sodium and chloride ions.
D) thin segment is not permeable to sodium ions, chloride ions, or water.

Question

Quizplus · Accepted Answer

The thick segment of the ascending limb of the nephron loop is impermeable to water but actively transports sodium and chloride ions out of the tubular fluid, making it permeable to these ions.

In the Ascending Limb of the Nephron Loop (Loop of Henle)