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anatomy, physiology

Red Blood Cell

Transports oxygen and carbon dioxide; lives for 120 days


Forms platelet plugs; releases chemicals necessary for blood clotting; important for hemostasis & live for 10-14 days

Neutrophil (50% - 70%)

Phagocytizes microorganisms and other substance

Lymphocyte (25% - 35%)

Produces antibodies and other chemicals responsible for destroying microorganisms; contributes to allergic reactions, graft rejection, tumor control, and regulation of immune system

Monocyte (3% - 9%)

Phagocytic cell in the blood; leaves the blood and becomes a macrophage, which phagocytizes bacteria, dead cells, cell fragments, and other debris within tissues

Eosinophil (< 5%)

Releases chemicals that reduce inflammation; attacks certain worm parasites

Basophil (< 1%)

Releases histamine, which promotes inflammation, and heparin, which prevents clot formation

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