It consists of a network of tissues, organs, structures and processes to protect the body from diseases and other damaging foreign bodies (Virus, Bacteria and Parasites), and help to get rid of toxins, waste and other unwanted materials.
IMAGE Source:OpenStax College. Anatomy & Physiology, Connexions
Web site. http://cnx.org/content/col11496/1.6/, Jun 19, 2013
- BONE MARROW: It is the soft, fatty, vascular tissue filling the cavities of bones, having a stroma of reticular fibers and cells. It is the major site for production of blood cells.
- TONSILS: Tonsils are the prominent oval mass of lymphoid tissue on each side of the throat which are believed to help protect the body from respiratory infections.
- LYMPH NODES: A bean-shaped mass of tissue found at intervals along the vessels of the lymphatic system. Lymph nodes filter foreign substances from the blood.
- LYMPHOCYTES: Any of various white blood cells, including B cells and T cells, that function in the body's immune system by recognizing and deactivating specific foreign substances called antigens. B cells act by stimulating the production of antibodies. T cells contain receptors on their cell surfaces that are capable of recognizing and binding to specific antigens. Lymphocytes are found in the lymph nodes and spleen and circulate continuously in the blood and lymph
- THYMUS: An organ of the lymphatic system located behind the upper sternum (breastbone). T cells (T lymphocytes) develop and mature in the thymus before entering the circulation. Thymus stops growing in early childhood and gradually shrinks in size through adulthood, resulting in a gradual decline in immune system function.
- SWELLING in neck or underarms
- CASTLEMEN DISEASE
- LYMPHOMA OR LYMPHNODE CANCER
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