An official definition of indigenous has not been adopted by the UN system due to the diversity of the worldâs indigenous peoples. Instead, a modern and inclusive understanding of indigenous has been developed and includes peoples who:
Thymus. The thymus gland is the main organ of the lymphatic system. Located in the upper chest region, the primary function of this gland is to promote the development of specific cells of the immune system called T lymphocytes.nce mature, these cells leave the thymus and are transported via blood vessels to the lymph nodes and spleen. T lymphocytes are responsible for cell mediated immunity, which is an immune response that involves the activation of certain immune cells to fight infection.
The gland produces thymosins, which are hormones that stimulate the development of antibodies. The thymus also produces T-lymphocytes which are white blood cells that fight infections and destroy abnormal cells. The thymus gland is very active in childhood.It plays a crucial role in developing and improving a child's immune system.fter the white blood cells mature, they leave the thymus gland and get settled in the spleen and the lymph nodes, where a fresh batch of T cells is produced. These white blood cells are the body's immune system and protect the body by producing antibodies that stop the invasion of foreign agents, bacteria and viruses.