Question

The hormone which reduces the sodium loss through urine and sweat is

• A. Calcitonin
• B. Aldosterone
• C. Parathormone
• D. Vasopressin

Answer 1

Answer: (B)

Aldosterone

A. Calcitonin is secreted from the C-cells of thyroid gland and acts on bone and kidneys to reduce blood calcium level.

B. Aldosterone is a mineralocorticoid hormone secreted from the adrenal cortex. It maintains the electrolyte balance in the body by reducing the loss of sodium through urine and sweat.

C. Parathormone is secreted from the parathyroid hormone and increases blood calcium level by increasing the reabsorption of calcium from the bones.

D. Vasopressin or Anti diuretic hormone (ADH), is secreted from the posterior part of pituitary gland. This hormone increases reabsorption of water in kidneys and this results in decreased rate of urine production.

So, the correct answer is 'Aldosterone'.