Multiple choice

Which hormone promotes the reabsorption of water from the nephron during urine formation?

  1. Calcitonin

  2. Antidiuretic hormone

  3. Insulin

  4. Relaxin

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Antidiuretic hormone (ADH), also known as vasopressin, increases the permeability of the collecting ducts and distal tubules to water. This promotes water reabsorption back into the bloodstream, concentrating the urine.