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chapter 18
terminology review
| Question | Answer |
|---|---|
| ameboid movement | movement used by leukocytes that permits them to propel themselves from the capillaries into the tissue |
| anemia | a condition in which there is a decreased in the erythrocytes or amount of hemoglobin in the blood. |
| bilirubin | an orange-colored bile pigment produced by the breakdown of heme from the hemoglobin molecule |
| diapedesis | the ameboid movement of blood cells (especially leukocytes) through the wall of a capillary and out into the tissue |
| hematology | the study of blood and blood-forming tissues |
| hemoglobin | the iron-containing pigment of erythrocytes that transports oxygen in the body |
| hemolysis | the breakdown of erythrocytes with the release of hemoglobin into the plasma |
| leukocytosis | an abnormal increase in the number of white blood cells (greater than 11,000 per cubic millimeter of blood) |
| leukopenia | an abnormal decrease in the number of white blood cells (less than 4500 per cubic millimeter of blood) |
| oxyhemoglobin | hemoglobin that has combined with oxygen |
| phagocytosis | the engulfing and distruction of foreign particles, such as a bacteria, by special cells called phagocytes |
| polycythemia | a disorder in which there is an increase in the red blood cell mass |