MICROANATOMY

Detailed explanation-1: -The thymus gland, located behind your sternum and between your lungs, is only active until puberty. After puberty, the thymus starts to slowly shrink and become replaced by fat. Thymosin is the hormone of the thymus, and it stimulates the development of disease-fighting T cells.

Detailed explanation-2: -[1] The thymus is the organ primarily responsible for the production and maturation of immune cells; including small lymphocytes that protect the body against foreign antigens.

Detailed explanation-3: -Three major thymus hormones, thymosin, thymopoietin, and thymulin, are thought to reside in the cytoplasm of the thymus epithelial cell.