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Chapter8

Hematology

TermDefinition
blast/o germ or bud
chrom/o color
chromat/o color
chyl/o juice
cyt/o cell
hem/o blood
hemat/o blood
immun/o immune/resistant
lymph/o clear liquid
morph/o form
myel/o bone marrow or spinal cord
phag/o eat or swallow
plas/o formation
reticul/o a net
splen/o spleen
thromb/o clot
thym/o thymus
blood circulating tissue of the body consisting of fluid with formed elements (red blood cells, white blood cells, and platelets) suspended in the fluid
plasma liquid portion of the blood and lymph; contains water, proteins, and cellular components (i.e., white blood cells, red blood cells, and platelets)
serum liquid portion of the blood that remains after clotting
red blood cells transport oxygen and carbon dioxide; also called erythrocyte
erythrocyte transport oxygen and carbon dioxide; also called red blood cell
hemoglobin the protein-iron compound in erythrocytes that transports oxygen and carbon dioxide
white blood cells protects the body from harmful invading substances; also called leukocyte
neutrophil a granular leukocyte, named for the neutral stain of its granules that fights infection by swallowing bacteria (phagocytosis) (neutr= neither) (phil=attraction for); Normal Range (in stained blood smear): 54-75%
polymorphonuclear (PMN) leukocyte another term for neutrophil, referring to the many segments in its nucleus (poly= many; morpho=form; nucleus= kernel)
basophil a granular leukocyte, named for the dark stain of its granules, that brings anticoagulant substances to inflamed tissues (baso=base; phil= attraction for); Normal Range (in stained blood smear): 0-1%
eosinophil a granular leukocyte, named for the rose-colored stain of its granules, that increases in allergic and some infectious reactions (eos=dawn-colored [rosy]; phil= attraction for); Normal Range (in stained blood smear): 1-3%
agranulocytes a group of leukocytes without granules in their nuclei
monocyte an agranulocytic leukocyte that performs phagocytosis to fight infection (mono=one); Normal Range (in stained blood smear): 3-7%
lymphocyte an agranulocytic leukocyte that is active in the process of immunity; the three categories of lymphocytes are T cells (thymus-dependent), B cells (bone marrow-derived), and natural killer (NK) cells; Normal Range (in stained blood smear): 25-33%
platelets cell fragments in the blood that are essential for blood clotting (coagulation); also called thrombocytes
lymphatic system Consists of lymph vessels, nodes, and tissues through which lymph drains into the blood
Created by: 4159562774133671
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