Leukocyte1 - Leukocytes: white blood cells (WBCs) only...

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Leukocytes: white blood cells (WBCs) only formed elements with nucleus o involved in immune responses; protect the body from damage by bacteria, o diapedesis use amoeboid motion with flowing cytoplasmic extensions to move through tissue spaces positive chemotaxis: follow chemical trail of other WBCs to sites of infection o leukocytosis : condition of increased WBC count during infection (normal response) o Granulocytes : WBCs with membrane-bound cytoplasmic granules Neutrophils: most numerous WBCs (>50% of WBC volume) ~ 2x size of RBCs very fine, lightly staining granules containing enzymes or antibiotic-like proteins (defensins) nucleus has from 3-6 lobes (also known as PMNs (polymorphonuclear leukocytes)) phagocytic cells ( kill bacteria & fungi by oxidation ), chemically attracted to sites of inflammation Eosinophils : ~ 1-4% of WBC population; about size of neutrophils
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Leukocyte1 - Leukocytes: white blood cells (WBCs) only...

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