The active uptake of sodium in the ascending limb or thick loop of Henle ispromoted by the action of.
Correct answer: A. Aldosterone
- A. Aldosterone
- B. Antidiuretic hormone (ADH)
- C. Parathyroid hormone (PTH)
- D. Atrial natriuretic peptide (ANP)
Explanation
Aldosterone is a hormone produced by the adrenal cortex that promotes the reabsorption of sodium ions (Na+) in the distal convoluted tubule and collecting ducts of the nephron. This reabsorption of sodium leads to the retention of water, increasing blood volume and blood pressure. While aldosterone primarily acts on the distal tubule and collecting ducts, it also plays a role in regulating sodium reabsorption in the ascending limb of the Loop of Henle.
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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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