Active uptake of_ in the ascending limb or thick loop of Henle is promoted by the action of aldosterone:
Correct answer: D. Na+
- A. K+
- B. Cl-
- C. Ca++
- D. Na+
Explanation
Option D is correct.The active uptake of sodium (Na+) in the ascending limb or thick loop of Henle is promoted by the action of aldosterone. Aldosterone is a hormone produced by the adrenal glands that acts on the distal tubules and collecting ducts of the nephron to enhance sodium reabsorption. By increasing sodium reabsorption, aldosterone helps regulate sodium and water balance in the body and plays a role in blood pressure regulation.
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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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