Question

Which one of the following statements is correct with respect to kidney function regulation?

• A. when someone drinks lot of water, ADH release is suppressed
• B. exposure to cold temperature stimulates ADH release
• C. an increase in glomerular blood flow stimulates formation of angiotensin II
• D. during summer when body loses lot of water by evaporation, the release of ADH is suppressed.

Answer 1

Answer: (A)

Antidiuretic hormone (ADH) or Vasopressin increases the reabsorption of water in the distal convoluted tubule, collecting tubules and collecting ducts of the nephrons of the kidneys. As a result, the reabsorption of water from the glomerular filtrate is increased. When someone drinks lot of water, requirement of absorption of water decreases, so ADH release is suppressed.