Question

Which of these is a catecholamine?

• A. Oxytocin
• B. Adrenaline
• C. Vasopressin
• D. Protactin

Answer 1

The correct option is B Adrenaline

Catecholamine are hormones which are produced by adrenal glands.

A. Oxytocin is produced by pituitary gland which stimulates contraction of uterine muscles during birth and ejection of milk.

B. Adrenaline is produced by adrenal medulla of adrenal gland which are released in response to physical or emotional stress. Other catecholamines are noradrenaline and dopamine.

C. Vasopressin is produced by pituitary gland which stimulates reabsorption of water and reduction of urine secretion.

D. Prolactin is produced by pituitary gland which stimulates production and secretion of milk.

So, the correct answer is 'adrenaline'.