Which pituitary hormone increases the permeability of urea in collecting ducts?
Which pituitary hormone increases the permeability of urea in collecting ducts? Correct Answer Vasopressin
Vasopressin improves the permeability of medullary collecting ducts to urea. This leads to urea retention and ultimately contributes to medullary interstitial hypertonicity. Phloretin can counteract the retention effect of urea.