An increase in sodium and chloride ions in the peritubular fluid affects the descending thin limb in what way?
A)When the osmotic concentration around the peritubular fluid increases around the descending limb the result is a decreased osmotic outflow of water.
B)When the osmotic concentration around the peritubular fluid increases around the descending limb the result is secretion of potassium ions.
C)When the osmotic concentration around the peritubular fluid increases around the descending limb the result is an increased osmotic outflow of water.
D)When the osmotic concentration around the peritubular fluid increases around the descending limb the result is reabsorption of potassium ions.
E)When the osmotic concentration around the peritubular fluid increases around the descending limb the result is secretion of hydrogen ions.

Question

Quizplus · Accepted Answer

An increase in sodium and chloride ion concentration in the peritubular fluid around the descending thin limb creates a concentration gradient that encourages the movement of water out of the descending limb. This is because the surrounding fluid around the limb becomes hypertonic compared to the descending limb's filtrate. As a result, there is an increased osmotic outflow of water.

An Increase in Sodium and Chloride Ions in the Peritubular