In urinary system, aldosterone takes part in retention (reabsorpation) of

Options

(a) Ca²⁺
(b) K⁺
(c) Na⁺
(d) water

Correct Answer:

Na⁺

Explanation:

Aldosterone, the most important mineralocorticoid hormone, is synthesized by the adrenal zona glomerulosa and plays a pivotal role in normal body fluid and electrolyte balance. Increased aldosterone production induces sodium retention and potassium loss.