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8 Cards in this Set
- Front
- Back
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Erythrocytes
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Transport oxygen and carbon dioxide
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WBC or Leukocytes
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Only make up 1% of blood.
Protect against bacteria, viruses, parasites, and cancerous cells. Remove toxins and wastes. Mostly found in connective tissue proper or in lymphatic system. |
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Neutrophils
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Form 50-70% of circulating WBCs.
Multilobed (2 to 5) They phagocytize bacteria and release cytotoxic enzymes and chemicals. |
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Eosinophils
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Form 2-4% of circulating WBCs.
Granules are chemically acidic and thus stain red. They engulf antibody-labeled material. Release cytotoxic enzymes. Reduce inflammation. Defend again parasitic worms and flukes. |
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Basophils
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Form less than 1% of circulating WBCs.
Granules are chemically basic and stain blue. They enter in damaged tissues and release histamine and heparin to promote inflammation. |
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Monocytes
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Make up 2-8% of WBC.
The largest of the WBC. They do phagocytosis and develop into macrophages in tissues. They increase in # in chronic infections. |
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Lymphocytes
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Form 20-30% of WBC.
T cells-cell-mediated immunity. They stimulate or inhibit other lymphocytes. B cells-they produce plasma cells that will become antibodies. NK cells-immune surveillance (they detect and destroy abnormal or cancerous cells). |
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Platelets
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They are fragments of megakaryoctyes and have no nucleus.
Only 1/3 of them are in the bloodstream. Hemostasis They clump together and stick to vessel wall They activate intrinsic pathway of coagulation phase |
