Question

Growth in the first 10 - 13 years of age is controlled by

• A. Somatotrophic hormone
• B. Thyroxine
• C. Thymosin
• D. Gonadotrophic hormone

Answer 1

Answer: (C)

Thymosin

Growth in the first 10-13 years of age is controlled by the hormone thymosis. Thymosin is the most studied hormone of the thymus gland. It is a substance of protein nature. This polypeptide is synthesised in the reticular cells of the thymus epithelium. Thymosin regulates the development of the musculoskeletal system, included in carbohydrate metabolism, controls calcium metabolism in the body, increases the intensity of secretion of gonadotropins by the pituitary gland. Also, thymosin takes an active part in the formation of the immune system until the age of 15.

So, the correct option is ‘Thymosin’.