KIN 2509 Ch 13

• one of a group of proteins on the surface of lymphocytes that enhance immune recognition
• immune cells that express CD4 are known as helper T cells

immunoglobulin

pertaining to an immune response that has been weakened by a disease or an immunosuppressive agent

the protection from specific diseases by vaccination or the injection of immunoglobulins

• antibodies are proteins secreted by B lymphocytes in response to foreign invaders
• IgM, IgA, IgD, IgD, and IgE

• extracellular fluid that fills the spaces between most of the cells of the body and provides a substantial portion of the liquid environment of the body
• formed by filtraation through the blood capillaries, it is drained away as lymph
• closely resembles blood plasma in composition but contains less proteins

• specialized cells of the reticuloendothelial system lining the sinusoids of the liver
• the function of Kupffer cells is to filter bacteria and other small foreign proteins out of the blood

• spherical membranous bags containing digestive enzymes that are abundant in phagocytes
• play an important role in disarming ingested bacteria, viruses, and toxins

• a large phagocyte found in lymph nodes and other tissues of the body
• major phagocytic cells of the immune system and have the ability to recognize and ingest all foreign antigens

• a giant multinuclear cell formed in the bone marrow of growing bones
• found in depressions on the surface of the bone
• aid in absorbing and removing excess bone tissue in the remodeling of growing bones, or in the repair of damaged or fractured bones

• a lymphocyte that is capable of binding to and killing virus-infected and some tumor cells by releasing cytotoxins
• found in the bone marrow, lymph nodes, and spleen
• cytotoxic activity is not antibody dependent

any disease-producing agent or microorganism

a cell (such as leukocyte or macrophage) that has the ability to ingest and destroy particulate substances such as bacteria, protozoa, other cells and cellular debris, dust particles, and colloids

gland

adenoids

vessel

clumping, gluing

immune, immunity

lymph

bone marrow, spinal cord

swallowing, eating

spleen

disease of gland

inflammation of adenoid tissue

any disease of blood or lymph vessels

the process of clumping or gluing together

producing immunity

a swelling of lymph tissue caused by abnormal accumulation of tissue fluid in the interstitial spaces

tumor originating in the bone marrow

enlargement of the spleen

tonsils

thymus gland

inflammation of the tonsils

usually a benign tumor of the thymus gland

weakness, debility

embryonic cell

cell

disease

protection

weakness of muscles and abnormal fatigue

immature or embryonic bone cell

a large phagocyte

disease of the lymph glands

• against protection
• life-threatening hypersensitivity reaction to a previously encountered antigen