Question

ADH influences water permeability in the

• A. Proximal tubule
• B. Bowman's capsule
• C. Collecting tubule
• D. Both (a) and (b)

Answer 1

The correct option is C Collecting tubule

Antidiuretic hormone (ADH), also known as vasopressin, controls the amount of water reabsorbed from the collecting ducts and tubules in the kidney. This hormone is produced in the hypothalamus and is delivered to the posterior pituitary for storage and release. When the osmoreceptors in the hypothalamus detect an increase in the concentration of blood plasma, the hypothalamus signals the release of ADH from the posterior pituitary into the blood.

So, the correct option is 'Collecting tubule'.