ANATOMY

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.

Detailed explanation-2: -The thymus is at its largest and most active during the neonatal and pre-adolescent periods. After this period the organ gradually disappears and is replaced by fat.

Detailed explanation-3: -The thymus is a triangular-shaped gland found in the chest. It is a ductless gland that produces a hormone called thymosin.

Detailed explanation-4: -The thymus gland is in the chest between the lungs. It makes white blood cells (T lymphocytes) which are part of the immune system and help fight infection.