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Chapter 18

Naomi Schutte-Smith Chapter 18

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 decrease in the erythrocytes or amount of hemoglobin in the blood
bilirubin an orange colored bile pigment produced by the breakdown of heme from the hemoblogin molecule
diapedesis the ameboid movement of blood cells (especially leukocytes) through the wall of a capaillary and out into the tissues
hematology the study of blood & blood forming tissues
hemoglobin the iron containing pigment of erythrocytes that transport 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 & destruction of foreign particles, such as bacteria, by special cells call phagocytes
polycythemia a disorder in which there is an increase in the red blood cell mass
microcytic An abnormally small red blood cell.
macrocytic An abnormally large blood cell.
normochromic A red blood cell with a normal concentration of hemoglobin.
normocytic A normal-sized red blood cell.
anisocytosis A variation in the size of the red blood cell.
anticoagulant A substance that inhabits blood counting.
hypochromic A red blood cell with a decreased concentration of hemoglobin.