In human physiology, which hormone secreted by the posterior pituitary increases water reabsorption in the collecting ducts of the nephron?
Answer and explanation
Correct answer: B. Antidiuretic hormone (ADH / Vasopressin)
- Step 1: ADH stimulates aquaporin channel insertion in kidney collecting ducts, concentrating urine and conserving water. Answer: Antidiuretic hormone (ADH / Vasopressin). Why not the others: Aldosterone promotes sodium reabsorption, not water alone.
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