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14.6 Lymph Terms

Conditions, Procedures and Vocabulary of the Lymphatic system

acquired immunodeficiency syndrome (AIDS) syndrome associated with suppression of the immune system and marked by opportunistic infections, secondary neoplasms, and neurologic problems.
allergy abnormal hypersensitivity acquired by exposure to an antigen.
lymphoma malignant tumor of lymph nodes and lymph tissue.
multiple myeloma malignant tumor of bone marrow cells.
thymoma malignant tumor of the thymus gland.
CD4+ cell count measures the number of CD4+ cells (helper T cells) in the bloodstream of patients with AIDS.
ELISA screening test to detect anti HIV antibodies in the bloodstream
acquired immunity formation of antibodies and lymphocytes after exposure to an antigen
adenoids masses of lymphatic tissue in the nasopharynx
antigen substance that the body recognizes as foreign: evokes an immune response
axillary node any of the 20-30 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 by antibodies
cervical node one of many lymph nodes in the neck region
cytokine protein made by T lymphocytes that aides in antigen destruction (interferons, interleukins, colony stimulating factors)
cytotoxic T cell T lymphocyte that directly kills foreign cells
dendritic cell cell that ingests antigens and presents them to T cells
helper T cell Lymphocyte that aids B cells in recognizing 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 secret antibodies
immune response body's capacity to resist foreign organisms and toxins that can damage tissue and organs
immunoglobulins antibodies (gamma globulins) that are secreted by plasma cells in humoral immunity.
immunotherapy use of immunologic knowledge and techniques to treat or prevent disease (innoculation, vaccines)
inguinal node one of several lymph nodes in the groin region
interferon antiviral protein secreted by T cells; they also stimulate macrophages to ingest bacterial.
interleukins proteins that stimulate the growth of B or T lymphocytes and activate specific components of the immune response
interstitial fluid Fluid in the space 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 within the 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 solid 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` one of many lymph nodes in the area between the lungs in the thoracic cavity.
monoclonal antibody antibody produces in a laboratory to attack antigens. it is useful in immunotherapy and cancer treatment.
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 in the bone marrow but matures in the thymus gland; it acts directly on antigens to destroy them or produce chemicals such as interferons and interleukins that are toxic to antigens
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; it empties the lymph into veins in the upper chest
thymus gland Organ in the mediastinim 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 response and protection against disease.
vaccine weakened or killed microorganisms or toxins administered to induce immunity to infection or disease.
immunoelectrophoresis Test that separates immunoglobulins (IgG, IgM, IgE, IgA, IgD).
viral load tests Tests that measure the amount of AIDS virus (HIV) in the bloodstream.
computed tomography (CT) scan X-ray imaging in the transverse plane produces cross sectional views of anatomic structures.
Created by: vikingmedterm