GENERAL HISTOLOGY

Detailed explanation-1: -The thymus gland is most active during childhood. Your thymus actually starts making T-cells before you’re born. It keeps producing T-cells and you have all the T-cells you need by the time you reach puberty. After puberty, your thymus gland slowly starts to decrease in size and is replaced by fat.

Detailed explanation-2: -Once you reach puberty, the thymus starts to slowly shrink and become replaced by fat. By age 75, the thymus is little more than fatty tissue. Fortunately, the thymus produces all of your T cells by the time you reach puberty.

Detailed explanation-3: -The thymus gland is a small organ that lies in the upper chest under the breastbone. It makes white blood cells, called lymphocytes, which protect the body against infections.

Detailed explanation-4: -The thymus is a vital yet unusual organ. Vital in that it is responsible for producing immune cells; unusual in that it is largest at childhood and progressively shrinks after puberty. The result is less T cell production, which should lead to a higher risk of infection or cancer.

Detailed explanation-5: -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.