Q.Where is thymus gland located ? Which hormone is secreted by it and what are its functions ?

Thymosin, secreted by the thymus gland, promotes both T-lymphocyte differentiation and antibody production.

The thymus is a lobed gland located near the heart and beneath the breastbone, well developed in the young and involuting with age. It secretes a group of peptide hormones collectively called thymosin. Thymosin plays a major role in the differentiation of T-lymphocytes, which provide cell-mediated immunity; in addition, it also promotes production of antibodies by other lymphocytes, thereby contributing to humoral immunity. This makes the thymus central to the maturation of the body's immune system, particularly during early life.

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The thymus gland is prominent (large) at birth and gradually atrophies (shrinks) with age in the adult.

The thymus is the endocrine/lymphoid gland that regresses after childhood.

The thymus, located in the upper thoracic region behind the sternum, is relatively large and highly active in infants and children, where it plays a central role in the maturation of T-lymphocytes and development of cell-mediated immunity. As a person grows older, the thymus undergoes progressive involution (atrophy), b …

Thymus -> Immunity.

The thymus is a soft, triangular endocrine gland located behind the sternum, prominent in children and regressing with age. It secretes thymosin, which promotes the differentiation of T-lymphocytes (T-cells), the cells responsible …