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13 Cards in this Set

  • Front
  • Back
leukocytes
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
Granulocytes
Neutrophils
Eusonophils
Basophils
Neutrophils
increase in bacterial infection
-phagocytosis of bacteria
-release of antimicrobial chemicals(cells explode and release antibacteria)
-
phagocytosis
engolf the bacteria and destroys it
Eusonophils
increase in parasitic infection
-phagocytosis of antigen-antibody complexes, allergens and inflamitory chemicals
* release enzymes to destroy paracyte)
Basophils
increase in chicken pox, sinusitis, diabetes
-secrete histamine(vasodilator)
secrete heparin(anticoagulant)
Agranulocytes
lymphocytes
monocytes
Lymphocytes
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
Monocytes
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
Platelets
small fragmentsof megokarocyte cytoplasm
-2-4um diameter:contains granules
-ameboid movement and phagocytosis
megakarocytes formed
in red bone marrow
platelet count
130,000- 400,000
Function of WBC
-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