Which pituitary hormone works at the level of the collecting duct to either increase or decrease absorption of water in order to maintain plasma volume and thus blood pressure?
A) aldosterone
B) vasopressin
C) cortisol
D) testosterone
E) epinephrine

Question

Quizplus · Accepted Answer

Vasopressin (also known as antidiuretic hormone or ADH) works at the level of the collecting duct to either increase or decrease absorption of water in order to maintain plasma volume and thus blood pressure. Aldosterone works on the distal tubules of the nephron to promote sodium retention and potassium excretion. Cortisol is not directly involved in regulating water balance. Testosterone and epinephrine do not play a role in regulating water balance.

Which Pituitary Hormone Works at the Level of the Collecting