The water content of mammalian blood is regulated by antidiuretic hormone(ADH). In which part of the nephron does regulation occur ?
Correct answer: B. The collecting duct
- A. The ascending limb of the loop of Henle
- B. The collecting duct
- C. The descending limb of the loop of Henle
- D. The proximal convoluted tubule
Explanation
Antidiuretic hormone (ADH) acts on the collecting duct of the nephron to increase water reabsorption, thereby regulating blood water content and concentrating urine.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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