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EBR EMS
EBR EMS Chapter 11 Definitions
| Question | Answer |
|---|---|
| agglutinate | antibodies causing antigens to clump or stick together |
| anemia | deficient number of red blood cells or deficient hemoglobin |
| antibody | substance produced by the body that destroys or inactivates a specific substance that has entered the body |
| antigen | substance that, when introduced into the body, causes formation of antibodies against it |
| aplastic anemia | blood disorder characterized by a low red blood cell count; caused by destruction of myeloid tissue in the bone marrow |
| basophil | white blood cell that stains readily with basic dyes |
| buffy coat | thin layer of white blood cells and platelets located between red blood cells and plasma in a centrifuged sample of blood |
| carbaminohemoglobin | the compound formed by the union of carbon dioxide with hemoglobin |
| embolism | obstruction of a blood vessel by forgein matter carried in the bloodstream |
| embolus | a blood clot or other substance that is moving in the blood and may block a blood vessel |
| eosinophil | white blood cell that is readily stained by eosin |
| erythroblastosis fetalis | a disease that may develop when an Rh-negative mother has anti-Rh antibodies and gives birth to an Rh-positive baby and the antibodies react with the Rh-negative cells of the body |
| erythrocyte | red blood cells |
| fibrin | insoluble protein in clotted blood |
| fibrogen | soluble blood protein that is converted to insoluble fibrin during clotting |
| hematocrit | volume percent of blood cells in whole blood |
| hemoglobin | iron-containing protein in red blood cells |
| hemorrhagic anemia | condition charaterized by low oxygen carrying capacity of blood; caused by decreased red blood cell lifespan and/or increased rate of RBC destruction |
| heparin | substance obtained from the liver; inhibits blood clotting |
| leukemia | blood cancer characterized by an increase in white blood cells |
| leukocyte | white blood cells |
| leukosytosis | abnormally high white blood cell numbers in the blood |
| leukopenia | abnormally low white blood cell number in the blood |
| lymphocyte | type of white blood cell |
| macrophage | phagocytic cells in the immune system |
| monocyte | a phagocyte |
| neutrophil | white blood cell that stains readily with neutral dyes |
| oxyhemoglobin | hemoglobin combined with oxygen |
| pernicious anemia | deficiency of red blood cells resulting from a lack of vitamin B12 |
| phagocyte | white blood cell that engulfs microbes and digests them |
| plasma | the liquid part of the blood |
| plasma protein | any of several proteins normally found in the plasma; includes albumins, globulins, and fibrinogen |
| polycythemia | an excessive number of red blood cells |
| prothrombin | a protein present in normal blood that is required fo blood clotting |
| prothrombin activator | a protein formed by clotting factors from damaged tissue cells and platelets; it converts prothrombin into thrombin, a step essential to forming a blood clot |
| serum | blood plasma minus its clotting factors, still contains antibodies |
| sickle cell anemia | when only one defective gene is inherited and only a small amount of hemoglobun that is less soluble than usual is produced |
| thrombin | protein important in blood clotting |
| thrombocyte | plays a role in blood clotting; also called platelet |
| thrombosis | formation of a clot in a blood vessel |
| thrombus | stationary blood clot |
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