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Side A ------ Side B
acquired immunity ------ Formation of antibodies and lymphocytes after exposure to an antigen
adenoids ------ Masses of lymphatic tissue in the nasopharynx
antibody ------ Protein produced by B cell lymphocytes to destroy antigens
antigen ------ Substance that the body recognizes as foreign; evokes an immune response.
axillary node ------ Any of the 20 to 30 lymph nodes in the armpit.
B cell ------ Lymphocyte that originates in the bone marrow and transforms into a plasma cell to secrete antibodies.  
cell-mediated immunity ------ An immune response involving T lymphocytes; antigens are destroyed by direct action of cells, as opposed to be antibodies.
cervical node ------ One of many lymph nodes in the neck region.
cytokine ------ Protein (made by T lymphocytes) that aids antigen destruction.
cytotoxic T cell ------ T lymphocyte that directly kills foreign cells.
dendritic cell ------ Cell (specialized macrophage) that ingests antigens and presents them to T cells.
helper T cell ------ Lymphocyte that aids B cells in recornizing antigens and stimulating antibody production; also called T4 cell or CD4+ cell
humoral immunity ------ Immune response in which B cells transform into plasma cells and secrete antibodies.
immune response ------ Body's capacity to resist foreign organisms and toxins that can damage tissue and organs; humoral and cell-mediated immunity.
immunoglobulins ------ Antibodies (gamma globulins) such as IgA, IgE, IgC, IgM and IgD that are secreted by plasma cells in humoral immunity.
immunotherapy ------ Use of immunologic knowledge and techniques to treat or prevent disease.
inguinal node ------ One of several lymph nodes in the groin region.
interferons ------ Antiviral proteins (cytokines) secreted by T cells; they are also stimulated macrophages to ingest bacteria.
interleukins ------ Proteins (cytokines) that stimulate the growth of B or T lymphocytes and activate specific components of the immune response.
interstitial fluid ------ Fluid in the spaces between cells.  This fluid becomes lymph when it enters lymph capillaries.
killer T cell ------ Cytotoxic T cell lymphocyte that recognizes and destroys foreign cells (viruses and tumor cells).
lymph ------ Thin, watery fluid found within lymphatic vessels and collected from tissues throughout the body.
lymph capillaries ------ Tiniest lymphatic vessels.
lymphoid organs ------ Lymph nodes, spleen and thymus gland
lymph node ------ Stationary soild lymphatic tissue along lymph vessels.
lymph vessel ------ Carrier of lymph throughout the body; lymphatic vessels empty lymph into veins in the upper part of the chest.
macrophage ------ Large phagocyte found in lymph nodes and other tissues of the body.
mediastinal node ------ Any of may lymph nodes in the area between the lungs in the thoracic cavity.
monoclonal antibody ------ Antibody produced in a laboratory to attack antigens.  
natural immunity ------ An individual's own genetic ability to fight off disease.
plasma cell ------ Lymphoid cell that secretes an antibody and originates from B lymphocytes.
right lymphatic duct ------ Large lymphatic vessel in the chest that receives lymph from the upper right part of the body.
spleen ------ Organ near the stomach that produces, stores, and eliminates blood cells.
suppressor T cell ------ Lymphocyte that inhibits the activity of B and T lymphocytes.
T cell ------ Lymphocyte that originates the bone marrow but matures in the thymus gland.
tolerance ------ In the thymus, T lymphocytes learn to recognize and accept the body's own antigens as "self" or friendly.
thoracic duct ------ Large lymphatic vessel in the chest that receives lymph from below the diaphragm and from the left side of the body above the diaphragm.
thymus gland ------ Organ in the mediastinum that produces T lymphocytes and aids in the immune response.
tonsils ------ Masses of lymphatic tissue in the back of the oropharynx.
toxin ------ Poison; a protein produced by certain bacteria, animals, or plants.
vaccination ------ Introduction of altered antigens (viruses or bacteria) to produce an immune respoinse and protection against disease.
vaccine ------ Weakened or killed miroorganisms or toxins administered to induce immunity to infection or disease.

Side A ------ Side B
acquired immunity ------ Formation of antibodies and lymphocytes after exposure to an antigen
adenoids ------ Masses of lymphatic tissue in the nasopharynx
antibody ------ Protein produced by B cell lymphocytes to destroy antigens
antigen ------ Substance that the body recognizes as foreign; evokes an immune response.
axillary node ------ Any of the 20 to 30 lymph nodes in the armpit.
B cell ------ Lymphocyte that originates in the bone marrow and transforms into a plasma cell to secrete antibodies.  
cell-mediated immunity ------ An immune response involving T lymphocytes; antigens are destroyed by direct action of cells, as opposed to be antibodies.
cervical node ------ One of many lymph nodes in the neck region.
cytokine ------ Protein (made by T lymphocytes) that aids antigen destruction.
cytotoxic T cell ------ T lymphocyte that directly kills foreign cells.
dendritic cell ------ Cell (specialized macrophage) that ingests antigens and presents them to T cells.
helper T cell ------ Lymphocyte that aids B cells in recornizing antigens and stimulating antibody production; also called T4 cell or CD4+ cell
humoral immunity ------ Immune response in which B cells transform into plasma cells and secrete antibodies.
immune response ------ Body's capacity to resist foreign organisms and toxins that can damage tissue and organs; humoral and cell-mediated immunity.
immunoglobulins ------ Antibodies (gamma globulins) such as IgA, IgE, IgC, IgM and IgD that are secreted by plasma cells in humoral immunity.
immunotherapy ------ Use of immunologic knowledge and techniques to treat or prevent disease.
inguinal node ------ One of several lymph nodes in the groin region.
interferons ------ Antiviral proteins (cytokines) secreted by T cells; they are also stimulated macrophages to ingest bacteria.
interleukins ------ Proteins (cytokines) that stimulate the growth of B or T lymphocytes and activate specific components of the immune response.
interstitial fluid ------ Fluid in the spaces between cells.  This fluid becomes lymph when it enters lymph capillaries.
killer T cell ------ Cytotoxic T cell lymphocyte that recognizes and destroys foreign cells (viruses and tumor cells).
lymph ------ Thin, watery fluid found within lymphatic vessels and collected from tissues throughout the body.
lymph capillaries ------ Tiniest lymphatic vessels.
lymphoid organs ------ Lymph nodes, spleen and thymus gland
lymph node ------ Stationary soild lymphatic tissue along lymph vessels.
lymph vessel ------ Carrier of lymph throughout the body; lymphatic vessels empty lymph into veins in the upper part of the chest.
macrophage ------ Large phagocyte found in lymph nodes and other tissues of the body.
mediastinal node ------ Any of may lymph nodes in the area between the lungs in the thoracic cavity.
monoclonal antibody ------ Antibody produced in a laboratory to attack antigens.  
natural immunity ------ An individual's own genetic ability to fight off disease.
plasma cell ------ Lymphoid cell that secretes an antibody and originates from B lymphocytes.
right lymphatic duct ------ Large lymphatic vessel in the chest that receives lymph from the upper right part of the body.
spleen ------ Organ near the stomach that produces, stores, and eliminates blood cells.
suppressor T cell ------ Lymphocyte that inhibits the activity of B and T lymphocytes.
T cell ------ Lymphocyte that originates the bone marrow but matures in the thymus gland.
tolerance ------ In the thymus, T lymphocytes learn to recognize and accept the body's own antigens as "self" or friendly.
thoracic duct ------ Large lymphatic vessel in the chest that receives lymph from below the diaphragm and from the left side of the body above the diaphragm.
thymus gland ------ Organ in the mediastinum that produces T lymphocytes and aids in the immune response.
tonsils ------ Masses of lymphatic tissue in the back of the oropharynx.
toxin ------ Poison; a protein produced by certain bacteria, animals, or plants.
vaccination ------ Introduction of altered antigens (viruses or bacteria) to produce an immune respoinse and protection against disease.
vaccine ------ Weakened or killed miroorganisms or toxins administered to induce immunity to infection or disease.