Term
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Definition
| Formation of antibodies and lymphocytes after exposure to an antigen. |
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Term
| Acquired immunodeficiency syndrome (AIDS) |
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Definition
| Depression or suppression of the immune system after exposure to the human immunodeficiency virus (HIV); marked by opportunistic infections, secondary neoplasms, and neurologic problems. |
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Term
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Definition
| Masses of lymphatic tissue in the nasopharynx. |
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Term
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Definition
| Substance capable of causing a specific hypersensitivity in a body; an antigen. |
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Term
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Definition
| Abnormal hypersensitivity acquired by exposure to an antigen (allergen). |
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Term
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Definition
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Term
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Definition
| Exaggerated or unusual hypersensitivity to foreign protein or other substance. |
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Term
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Definition
| Protein produced in the bloodstream by lymphocytes in response to a specific antigen, such as a bacterium or toxin. Antibodies destroy or weaken antigens. |
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Term
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Definition
| Intense allergic reaction (such as asthma) influenced by hereditary tendency or predisposition. |
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Term
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Definition
| Chronic, disabling disease in which the body produces antibodies against its own tissues. Examples are rheumatoid arthritis and lupus erythematosus. |
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Term
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Definition
| Chronic disabling disease caused by the abnormal production of antibodies to normal body tissues; multiple sclerosis, lupus erythematosus are examples. |
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Term
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Definition
| Lymph node under the arm. |
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Term
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Definition
| A lymphocyte that originates in bone marrow and transforms into a plasma cell to secrete antibodies. |
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Term
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Definition
| Helper T cells that carry the CD4+ protein antigen on their surface. |
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Term
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Definition
| Type of immune response that involves T cell lymphocytes. These lymphocytes act directly on antigens to destroy them. |
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Term
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Definition
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Term
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Definition
| Protein that aids cells to destroy antigens. Examples are interleukins and interferons. |
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Term
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Definition
| T cell lymphocyte that directly kills foreign cells; T8 cell. |
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Term
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Definition
| A type of macrophage that captures antigens and presents them to T cells for destruction. |
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Term
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Definition
| Test to detect anti-HIV antibodies in blood. This is a screening test for AIDS. |
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Term
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Definition
| Lymphocyte that aids a B cell lymphocyte in recognizing antigens and stimulating antibody production. |
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Term
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Definition
| Malignant tumor of lymphatic tissue in the spleen and lymph nodes. |
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Term
| Human immunodeficiency virus (HIV) |
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Definition
| Virus (retrovirus) that causes AIDS. |
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Term
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Definition
| Type of immune response in which a B cell lymphocyte transforms into a plasma cell and secretes antibodies. |
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Term
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Definition
| Abnormal condition characterized by an exaggerated response of the immune system to an antigen. |
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Term
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Definition
| Syndrome of spleen enlargement (splenomegaly) and destruction of red blood cells (hemolysis). |
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Term
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Definition
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Term
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Definition
| The body’s capability to resist foreign organisms and toxins that can damage tissue and organs. |
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Term
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Definition
| Laboratory test that separates immunoglobulins (IgG, IgM, IgD, IgE, and IgA). |
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Term
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Definition
| Protein (antibody produced by plasma cells) that acts to protect the body by destroying antigens. |
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Term
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Definition
| Suppression (stopping) of the immune response. |
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Term
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Definition
| Use of immunologic techniques to treat disease. |
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Term
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Definition
| Lymph node in the groin region. |
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Term
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Definition
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Term
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Definition
| Anti-viral proteins secreted by lymphocytes. |
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Term
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Definition
| Proteins (cytokines) that stimulate the immune system including B & T cell lymphocytes. |
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Term
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Definition
| Fluid that fills the spaces in between cells. |
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Term
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Definition
| Malignant tumor of skin and connective tissue; associated with AIDS. |
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Term
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Definition
| Fluid that circulates within lymph vessels and lymph nodes. |
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Term
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Definition
| Tiny lymph vessels that carry lymph through the body. |
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Term
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Definition
| Mass of stationary lymphatic tissue along the path of lymph vessels. |
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Term
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Definition
| Carry lymph throughout the body. |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Inflammation of lymph nodes. |
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Term
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Definition
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Term
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Definition
| Abnormal collection of fluid in tissue spaces caused by obstruction of lymph vessels and backflow of lymph. |
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Term
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Definition
| White blood cells that develop primarily in lymph nodes and the spleen and fight against foreign organisms. |
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Term
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Definition
| Deficiency of lymphocytes. |
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Term
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Definition
| Increase in numbers of lymphocytes in the bloodstream. |
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Term
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Definition
| Derived from lymph tissue. |
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Term
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Definition
| Organs containing and derived from lymphatic tissue; spleen, thymus gland and lymph nodes. |
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Term
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Definition
| Malignant tumor of lymph nodes and lymphatic tissue. |
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Term
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Definition
| Formation of lymphocytes. |
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Term
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Definition
| Large phagocyte found in lymphatic tissues and connective tissues; derived from a monocyte. |
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Term
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Definition
| Lymph node in the mediastinum (central area between the lungs in the chest). |
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Term
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Definition
| Antibody produced in a laboratory to attack specific antigens. |
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Term
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Definition
| Malignant tumor of bone marrow cells (plasma cells that produce immunoglobulins). |
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Term
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Definition
| Person’s own genetic ability to fight off disease. It includes phagocytes and lymphocytes such as natural killer cells. |
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Term
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Definition
| Lymphocyte that recognizes and destroys foreign cells by releasing proteins called cytokines. |
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Term
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Definition
| Malignant tumor of cells (lymphocytes and large macrophages called histocytes) found in lymph nodes and spleen |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Infectious diseases associated with AIDS; toxoplasmosis, tuberculosis, herpes simplex, and Pneumocystosis carinii pneumonia (PCP). |
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Term
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Definition
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Term
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Definition
| B cell lymphocyte that secretes antibodies. |
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Term
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Definition
| Drug used to treat AIDS by blocking production of protease, an enzyme that helps HIV to reproduce. |
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Term
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Definition
| Virus that makes copies of itself using the host cell’s DNA, a process that is the reverse of the normal replication mechanism in cells. HIV is a retrovirus. |
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Term
| Reverse transcriptase inhibitor |
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Definition
| Drug used to treat AIDS by blocking an enzyme (reverse transcriptor), needed to make copies of HIV. |
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Term
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Definition
| Receives lymph from the right side of the body and empties lymph into a vein in the neck. |
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Term
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Definition
| Organ adjacent to the stomach (in the LUQ) that produces, stores, and eliminates blood cells. |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Enlargement of the spleen. |
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Term
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Definition
| pertaining to standing or positioned |
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Term
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Definition
| Lymphocyte that inhibits the activity of B and T cell lymphocytes. |
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Term
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Definition
| Lymphocyte originating in the thymus gland and destroys antigens by direct action or production of cytokines such as interferons and interleukins. |
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Term
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Definition
| Large lymphatic vessel in the upper chest. |
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Term
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Definition
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Term
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Definition
| Removal of the thymus gland. |
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Term
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Definition
| Malignant tumor of the thymus gland. |
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Term
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Definition
| Lymphoid organ in the mediastinum that produces T cell lymphocytes and aids in the immune response. |
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Term
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Definition
| Masses of lymphatic tissue on either side of the back of the mouth. |
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Term
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Definition
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Term
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Definition
| Pertaining to a toxin, which is a poison or harmful substance. |
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Term
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Definition
| Poison or harmful substance. |
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Term
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Definition
| Introduction of a vaccine (containing dead or weakened antigen) to produce immunity. It is a type of acquired immunity. |
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Term
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Definition
| Weakened or dead antigens to induce antibody production. |
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Term
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Definition
| Measures the amount of HIV in the blood stream. |
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Term
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Definition
| Weight loss and decrease in muscle strength, appetite, and mental activity that occurs with AIDS. |
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Term
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Definition
| Specific test to detect presence of anti-HIV antibodies in the bloodstream. |
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