Which statement does NOT apply to vasopressin?
A)Its secretion is stimulated by a water deficit.
B)It increases the permeability of the distal and collecting tubules to water.
C) It increases the permeability of the proximal portion of the collecting tubule to urea.
D) It is secreted from the posterior pituitary gland.

Question

Quizplus · Accepted Answer

Vasopressin does not increase the permeability of the proximal portion of the collecting tubule to urea. Instead, it increases the concentration of urea in the medullary interstitium, which helps to create a concentration gradient that facilitates water reabsorption in the collecting ducts.

Which Statement Does NOT Apply to Vasopressin