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CH 6 Study Guide
CH 6 Review (Additional Medical Terms)
| Term | Definition |
|---|---|
| albumin | plasma proteins too large to pass through the wall of a blood vessel |
| antigen | any substance (as an immunogen) foreign to the body that evokes an immune response |
| complement | a group of nine proteins that activate each other |
| ecchymoses | hemorrhages larger than petechiae |
| embolus | a thrombus (blood clot) that has broken free and travels through the circulatory system |
| histamine | a substance which dilates blood vessels and increases blood flow |
| Hodgkin's lymphoma | the most common type of lymphoma |
| immune | not susceptible or responsive |
| index (plural ; indices) | a ratio or other number derived from a series of observations and used as an indicator or measure |
| interferon | immune response chemicals which stimulates production of an antiviral substance |
| lymph | a clear, watery, sometimes faintly yellowish fluid derived from body tissues that contains white blood cells and circulates throughout the lymphatic system, returning to the venous bloodstream through the thoracic duct |
| mean | something having a position, quality, or condition midway between extremes ; a medium |
| node | a discrete mass of one kind of tissue enclosed in tissue of a different kind |
| nucleoside | encapsulated structures that are round, oval, or bean-shaped |
| pernicious | highly injurious or destructive |
| petechiae | small, pinpoint hemorrhages |
| plasma | a clear straw-colored liquid that makes up 55% of the blood |
| plasminogen | a cell fragment active in the blood clotting process |
| platelet | (also thrombocyte) a minute, irregularly shaped, cytoplasmic body found in blood plasma that promotes blood clotting and has no definite nucleus, no DNA, and no hemoglobin |
| purpura | any of several hemorrhagic states characterized by patches of purplish discoloration resulting from extravasation of blood into the skin and mucous membranes |
| serum | the fluid portion of plasma that remains when clotting factors in plasma form a blood clot |
| spleen | a rounded lymphoid organ, located in the left upper quadrant of the abdomen |
| stasis | a slowing or stoppage of the normal flow of a bodily fluid or semifluid |
| thalassemia | inherited genetic abnormality that affects the synthesis of the globin in hemoglobin |
| thrombus (pl. thrombi) | blood clot |
| thymus | a lymphoid organ with a pink color and a grainy consistency |
| transcriptase | a polymerase that catalyzes the formation of RNA from a DNA template in the process of transcription |
| vaccine | a preparation of killed microorganisms, living attenuated organisms, or living fully virulent organisms that is administered to produce or artificially increase immunity to a particular disease |
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