Medical Terminology - Immunology

Functional rather than an organ system. Consists of trillions of individual immune cells called lymphocytes, housed in lymphatic tissues & ciruclate in body fluids.

Consists of lymph, lymph vessels, number of lymphoid tissue masses known as lymph nodes, and three organs - the tonsils, thymus, and spleen.

Small oval bodies of lymphatic tissue, occur in clusters along the lymphatic vessels of the body. Vary in shape and size, but each is surrounded by dense, fibrous connective tissue capsule.

Soft & blood-rich. The largest lymphatic organ in the body. Plays important role in immune response by filtering blood and destroying old erythrocytes. Removes pathogens.

Occurs when the body's immune mechanism is not able to recognize its own tissues and chemical as "self".

Gland, disease of a gland.

Immune, immunity. producing immunity.

Lymph. swelling of lympth tissue.

Spleen, enlargement of the spleen.

Thymus gland, usually benign tumor of the thymus gland.

Cell, large phagocyte (swallowing or eating).

AIDS, progressive impairment of the immune system caused by human immunodeficiency Virus (HIV).

Inflammation of the adenoids or pharyngeal tonsils.

Absence of a spleen.

EBV, member of herpes virus family. Causes infectious mononucleosis, Burkitt lymphoma, and other lymphoproiferative disorders, especially in transplantation patients.