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13 Cards in this Set
- Front
- Back
leukocytes
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wbc
-5000-10,000 wbcs/ul has nucleus(can make protein) * travels in blood before migarating to connective tissue* -fight infection before it gets into bloodstream -function- protection against pathogens |
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Granulocytes
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Neutrophils
Eusonophils Basophils |
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Neutrophils
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increase in bacterial infection
-phagocytosis of bacteria -release of antimicrobial chemicals(cells explode and release antibacteria) - |
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phagocytosis
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engolf the bacteria and destroys it
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Eusonophils
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increase in parasitic infection
-phagocytosis of antigen-antibody complexes, allergens and inflamitory chemicals * release enzymes to destroy paracyte) |
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Basophils
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increase in chicken pox, sinusitis, diabetes
-secrete histamine(vasodilator) secrete heparin(anticoagulant) |
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Agranulocytes
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lymphocytes
monocytes |
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Lymphocytes
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increase in diverse infections and immune responses
-destroy cells(cancer, foreign, and cirally infected cells) -"present" antigens to activate other immune cells -Coordinate action of other immune cells - secrete antibodies and provide immune memory |
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Monocytes
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increase in infection and inflamation
-differentiate into monophages -phagocytize pathogens and debris -"present" antigens to activate other immune cells - has large size in order to have the pac-man effect |
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Platelets
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small fragmentsof megokarocyte cytoplasm
-2-4um diameter:contains granules -ameboid movement and phagocytosis |
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megakarocytes formed
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in red bone marrow
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platelet count
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130,000- 400,000
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Function of WBC
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-Secrete clotting facts and growth factors for vessel repair
-initiate formation of clot dissolving enzyme -phagocyte bacteria -chemically attract neutrophils and monocytes to sites of inflamation |