The main function of the thymus gland is to release thymosin hormone that will stimulate the maturation of T cells. All of our childhood, white blood cells or lymphocytes will come in contact with the thymus gland.
The thymus is a specialized primary lymphoid organ of the immune system. Within the thymus, T cells mature. T cells are critical to the adaptive immune system, where the body adapts specifically to foreign invaders.
Thymus Gland. The thymus gland, despite containing glandular tissue and producing several hormones, is much more closely associated with the immune system than with the endocrine system.