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Med.Term C14 Vocab
Chabner, Language of Medicine 11th edition-Chapter 14 Vocabulary
| Vocabulary | Meaning |
|---|---|
| adaptive immunity | Ability to recognize and remember specific antigens and mount an attack on them |
| adenoids | Mass of lymphatic tissue in the nasopharynx |
| antibody | Protein produced by B cells to destroy antigens |
| antigen | Substance that the body recognizes as foreign; evokes an immune response |
| axillary nodes | Lymph nodes in the armpit |
| B cell (B lymphocyte) | Lymphocyte that matures into a plasma cell to secrete antibodies |
| cell-mediated immunity | T cells that respond to antigens and destroy them |
| cervical nodes | Lymph nodes in the neck region |
| complement system | Proteins in the blood that help antibodies and kill their target |
| cytokines | Proteins secreted by cytotoxic T cells to aid in antigen destruction |
| cytotoxic T cell (CD8+ T cell) | Lymphocyte that directly kills antigens |
| dendritic cell | Antigen-presenting cell; shows T and B cells what to attack |
| helper T cell (CD4+ T cell) | Lymphocyte that aids B cells and stimulates T cells |
| humoral immunity | B cells produce antibodies after exposure to specific antigens; type of adaptive immunity |
| immunity | Body’s ability to resist foreign organisms and toxins that damage tissues and organs |
| immunoglobulins | Antibodies secreted by plasma cells in response to the presence of an antigen |
| immunotherapy | Use of immune cells, antibodies, or vaccines to treat or prevent disease |
| inguinal nodes | Lymph nodes in the groin region |
| interferons | Proteins secreted by T cells and other cells to aid and regulate the immune response |
| interleukins | Proteins that stimulate the growth of B and T lymphocytes |
| interstitial fluid | Fluid in the spaces between cells; becomes lymph in lymph capillaries |
| lymph | Thin, watery fluid 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 | Collection of stationary solid lymphatic tissue along lymph vessels |
| lymph vessel | Carrier of lymph throughout the body |
| macrophage | Large phagocyte found in lymph nodes and other tissues of the body |
| mediastinal nodes | Lymph nodes in the area between the lungs in the thoracic cavity |
| mesenteric nodes | Lymph nodes in the mesentery |
| monoclonal antibody | An antibody produced in a laboratory to attack antigens and to destroy cells |
| natural immunity | Protection that an individual is born with to fight infection |
| paraaortic nodes | Lymph nodes near the aorta in the lumbar area of the body |
| plasma cell | Lymphocyte that secretes antibodies; matures from B lymphocytes |
| right lymphatic duct | Vessel in the chest that drains lymph from the upper right part of body; empties into large neck vein |
| spleen | Organ in the left upper quadrant of the abdomen that destroys worn-out RBCs, activates lymphocytes, and stores blood |
| suppressor T cell (Treg) | Lymphocyte that inhibits the activity of B and T cells |
| T cell (T lymphocyte) | Lymphocyte that acts directly on antigens to destroy them or produces chemicals toxic to antigens |
| tolerance | Ability of T lymphocytes to recognize and accept the body’s own antigens as “self” or friendly |
| thoracic duct | Drains lymph from the lower and left side of body; empties into large veins in neck |
| thymus gland | Lymphoid organ in the mediastinum that conditions T cells to react to foreign cells |
| tonsils | Masses of lymphatic tissue in back of the oropharynx |
| toxin | Poison; a protein produced by certain bacteria, animals, or plants |
| vaccination | Exposure of an individual to an antigen that provokes an immune response that will destroy any cell with the antigen and will protect against infection |
| vaccine | Weakened or killed microorganisms, toxins, or other proteins given to induce immunity to infection or disease |