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Hematology (Stacy Maloon)

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Term
Definition
ameboid movement   movement used by leukocytes that permits them to propel themselves from the capillaries into the tissues  
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anemia   a condition in which there is a decrease in the erythrocytes or amount of hemoglobin in the blood.  
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anisocytosis   a variation in the size of red blood cells  
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anticoagulant   a substance that inhibits blood clotting  
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bilirubin   an orange-colored bile pigment produced by the break down of heme from the hemoglobin molecule  
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diapedesis   the ameboid movement of blood cells (especially leukocytes) through the wall of a capaillary and out into the tissues  
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hematology   the study of blood & blood forming tissues  
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hemoglobin   the iron containing pigment of erythrocytes that transport oxygen in the body  
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hemolysis   the breakdown of erythrocytes with the release of hemoglobin into the plasma  
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hypochromic   a red blood cell with a decreased concentration of hemoglobin  
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leukocytosis   an abnormal increase in the number of white blood cells (greater than 11,000 per cubic millimeter of blood)  
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leukopenia   an abnormal decrease in the number of white blood cells (less than 4500 per cubic millimeter of blood)  
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microcytic   an abnormally large red blood cell  
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macrocytic   an abnormally large red blood cell  
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normochromic   a red blood cell with a normal concentration of hemoblogin  
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normocytic   a normal sized red blood cell  
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oxyhemoglobin   hemoglobin that has combined with oxygen  
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phagocytosis   the engulfing & destruction of foreign particles, such as bacteria, by special cells call phagocytes  
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polycythemia   a disorder in which there is an increase in the red blood cell mass  
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Created by: stacymaloon
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