Question

The reabsorption of the sodium from glomerular filterate is regulated by the hormone

• A. Glucagon
• B. Secretin
• C. Aldosterone
• D. Adrenalin

Answer 1

Answer: (C)

Aldosterone

Aldosterone is a hormone produced in the outer section (cortex) of the adrenal glands, which sit above the kidneys. It plays a central role in the regulation of blood pressure mainly by acting on organs such as the kidney and the colon to increase the amount of salt (sodium) reabsorbed into the bloodstream and the amount of another salt called potassium removed in the urine. The biological action of aldosterone is to increase the retention of sodium and water and to increase the excretion of potassium by the kidneys.