Immune System
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| the disease process that occurs following infection with thehuman immunodeficiency virus (HIV). | acquired immune deficiency syndrome (AIDS)
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| a naturally occurring hormone that also may begiven as a cardiac drug and has alpha and beta effects. Also called epinephrine | adrenaline
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| a severe reaction to an antigen that occurs after sensitization from a prior exposure to the same antigen. | anaphylaxis
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| one of two types of specific immunity that exist in the body, it is primarily mediated by B cells; also called humoral immunity. | antibody-mediated (humoral) immunity
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| a substance foriegn to the body. | antigen
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| a large collection of lymph nodes located in the axilla (armpit). | axillary nodes
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| a white blood cell that may play a role following infection of various areas in the body. | basophil
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| a protein found on the surface of T helper cells that is adversely affected by exposure to HIV. | CD4 antigen
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| one of two types of specific immunity that exist in the body, it is primarily mediated by T cells. | cell-mediated immunity
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| a large collection of lymph nodes located in the neck. | cervical nodes
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| the process of the migration of leukocytes in the blood toward areas of bacterial invasion, foreign body, or infection. | chemotaxis
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| tissue with no clear boundary that blends with surrounding tissues and contains lymphocytes and other cells. | diffuse lymphatic tissue
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| Escherichia coli, a normal flora or bacteria found in the gastrointestinal tract that aids in digestion and absorption of food, as well as metabolization of waste products. | e coli
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| a leukocyte that may play a role following infection in various areas in the body. | eosinophil
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| a serious condition that results when a pregnant woman's blood type is incompatible with the fetus' blood type and antibodies from the mother enter the fetal circulation and destroy the fetus' red blood cells. | erythroblastosis fetalis
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| a small molecule that will not evoke a specific immune response unless it is combined with other serum proteins, in which case, a severe reaction may occur. | hapten
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| a virus that adversely affects a protein on T helper cells, the CD4 antigen, by causing it to appear as an antigen to healthy cells, resulting in destruction of T helper cells and the inability to fight infections and certain types of tumors. | human immunodeficiency virus (HIV)
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| the body system that is responsible for providing immunity. | immune system
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| the body's ability to resist damage from foreign substances, microscopic organisms, or harmful chemicals. | immunity
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| a disease that may be transmitted from one person to another via some type of specific microscopic organism, such as a bacterium or a virus. | infectious disease
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| a response of the immune system that results in the influx of cells and other chemicals to fight a foreign challenge. | inflammatory response
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| a large collection of lymph nodes located in the groin. | inguinal nodes
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| one of two great lymph vessels, it empties into the subclavian vein. | lymphatic duct
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| a passive circulatory system that transports a plasma-like liquid called lymph, a thin fluid that bathes the tissues of the body. | lymphatic system
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| a type of white blood cell that helps fight infection and provide immunity. | lymphocytes
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| complex proteins produced by T effector cells that recruit mast cells and other nonspecific inflammatory mediators to aid in destruction of antigens. | lymphokines
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| the breakdown of a foreign cell caused, in some cases, when T effector cells bind to the foreign cell. | lysis
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| one of three sets of lymphatic organs that comprise the tonsils, they are located on the posterior margin of the tongue and help protect the body from bacteria introduced into the mouth and nose. | lingual tonsils
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| a thin plasma-like liquid formed from interstitial or extracellular fluid that bathes the tissues of the body. | lymph
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| round or bean-shaped structures interspersed along the course of the lymph vessels, which filter the lymph and serve as a source of lymphocytes. | lymph nodes
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| tissue that is denser than diffuse lymphatic tissue, found in the loose connective tissue of the digestive, respiratory, and urinary systems. | lymph nodules
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| thin-walled vessels through which lymph circulates through the body, they travel close to the major arteries and veins. | lymph vessels
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| inflammation of a lymph node caused by infection. | lymphadenitis
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| lymphadenopathy -- any swelling of the lymph nodes, with or without pain. | lymphadenopathy
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| an infection that spreads beyond the local area into a lymphatic vessel causing red streaks to run from the infected area proximally. | lymphangitis
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| vessels of the lymphatic system that carry fluid away from the tissues. | lymphatic capillaries
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| one of two great lymph vessels, it empties into the subclavian vein. | lymphatic duct
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| a passive circulatory system that transports a plasma-like liquid called lymph, a thin fluid that bathes the tissues of the body. | lymphatic system
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| the smallest of the agranulocytes, they originate in the bone marrow but migrate through the blood to the lymphatic tissues. | lymphocytes
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| complex proteins produced by T effector cells that recruit mast cells and other nonspecific inflammatory mediators to aid in destruction of antigens. | lymphokines
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| the breakdown of a foreign cell caused, in some cases, when T effector cells bind to the foreign cell. | lysis
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| cells that leave the bloodstream and enter diseased tissues after the neutrophils and are responsible for the later stages of fighting infection. | macrophages
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| a large white blood cell that mediates allergic reactions and may play a role following infection of various areas in the body. | mast cell
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| the spreading of a disease from one part of the body to another, especially with many forms of cancer. | metastasize
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| an organism of microscopic size. | microorganism
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| one of the three types of granulocytes; they have multi-lobed nuclei that resemble a string of baseballs held together by a thin strand of thread; they destroy bacteria, antigen-antibody complexes, and foreign matter. | neutrophils
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| an immune response that is predictable each time the body is exposed to a particular challenge. | nonspecific immunity
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| bacteria found in certain sites in the body, such as the gastrointestinal tract and oral and nasal cavities, that help maintain homeostasis. | normal flora
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| one of three sets of lymphatic organs that comprise the tonsils. They are located in the back of the throat, on each side of the posterior opening of the oral cavity, and help protect the body from bacteria introduced into the mouth and nose. | palatine tonsils
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| endocytosis involving solid particles. | phagocytosis
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| one of three sets of lymphatic organs that comprise the tonsils, they are located near the internal opening of the nasal cavity and help protect the body from bacteria introduced into the mouth and nose. Also called adenoids. | pharyngeal tonsils
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| the immune response to a given substance that is faster and stronger after each subsequent exposure. | specific immunity
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| an organ of the lymphatic system that is located in the left upper quadrant of the abdomen and consists of two types of lymph tissue that are associated with drainage of the spleen. | spleen
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| surgical removal of the spleen. | splenectomy
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| the cells that carry out most of the cellmediated immune functions by seeking and destroying foreign materials, such as viruses, fungi, bacteria, and particles. | T effector cells
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| cells that aid the T effector cells in carrying out cell-mediated immune functions. | T helper cells
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| cells that suppress the actions of the T effector cells by limiting the specific immune response. | T suppressor cells
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| the form into which T cells differentiate when activated by an antigen. The T memory cells remain within the body, ready to respond to a second challenge. | T memory cells
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| one of two great lymph vessels, it empties into the superior vena cava. | thoracic duct
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| a triangular-shaped gland located below the sternum in the superior mediastinum that produces lymphocytes. | thymus
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| three sets of lymphatic organs-the palatine tonsils, pharyngeal tonsils, and lingual tonsils-that are located in the back of the throat and nasopharynx and protect the body from bacteria introduced into the mouth and nose. | tonsils
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