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erythrocyte
red blood cell that transports oxygen and carbon dioxide within the bloodstream
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hemoglobin
protein-iron compound contained in the erythrocyte that has bonding capabilities for the transport of oxygen and carbon dioxide
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leukocyte
white blood cell that protects the body from invasion of harmful substances
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granulocytes
a group of leukocytes containing granules in their cytoplasm
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neutrophil
a granular leukocyte, named for the neutral stain of its granules, that fights infection by swallowing bacteria
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polymorphonuclear leukocyte (PMN)
another term for neutrophil, named for the many segments present in its nucleus
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band
an immature neutrophil
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eosinophil
a granular leukocyte, named for the rose-color stain of its granules, that increases with allergy and some infections
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basophil
a granular leukocyte, named for the dark stain of its granules, that brings anticoagulant substanes to inflamed tissues
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agranulocytes
a group of leukocytes without granules in their nuclei
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lymphocyte
an agranulocytic leukocyte that is active in the process of immunity - there are four categories of lymphocytes:
- T cells (thymus dependent)
- B cells (bone marrow derived)
- NK cells (natural killer)
- K-type cells
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monocyte
an agranulocytic leukocyte that performs phagocytosis to fight infection
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platelets
thrombocytes; cell fragments in the blood essential for blood clotting (coagulation)
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