What is the Role of Vasopressin in Kidney Function?
The primary function of vasopressin in the kidneys is to increase water reabsorption in the collecting ducts. It binds to V2 receptors on the cells lining the collecting ducts, triggering a cascade of events that result in the insertion of aquaporin-2 channels into the cell membrane, allowing water to move from the tubular fluid back into the blood.