Question

Which of the following is not true for adrenal gland?

• A. Corticoids are produced by adrenal cortex
• B. Cortisol is a mineralocorticoid
• C. Adrenal medullary homones are called catecholamines
• D. Catecholamines increase heart rate

Answer 1

The correct option is B Cortisol is a mineralocorticoid

Adrenal glands have 2 layers - adrenal cortex and adrenal medulla. Adrenal cortex produces many hormones called corticoids. The corticoids, which are involved in carbohydrate metabolism are called glucocorticoids. Cortisol is the main glucocorticoid. Corticoids, which regulate the balance of water and electrolytes in our body are called mineralocorticoids. Aldosterone is the main mineralocorticoid in our body.

The adrenal medulla secretes two hormones called adrenaline or epinephrine and noradrenaline or norepinephrine. These are commonly called as catecholamines. Both the hormones increase the heart beat, the strength of heart contraction and the rate of respiration.