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akanemb
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the liquid portion of the blood
Plasma
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a red blood cell
Erythrocyte
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a white blood cell
Leukocyte
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a platelet, involved
in blood clotting
Thrombocytes
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an inability of the blood to carry sufficient oxygen to the tissues
Anemia
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a laboratory test to
determine the total volume of the red blood cells
Hematocrit or sed rate
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used to determine the types of “antigens” located on the red blood cell to facilitate blood
transfusions
Blood typing
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blood minus its cells
plasma
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where are RBC formed
red bone marrow
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what is the RBC structure
- disk-shaped,
- without nuclei
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what is the function of RBC
transport oxygen and carbon dioxide
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anemia is caused by
•Inadequate RBC numbers
•Deficiency of hemoglobin
- •Pernicious anemia—deficiency of
- vitamin B12
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abnormally high RBC count
Polycythemia
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what is the function of WBC
defense
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abnormally low WBC count
Leukopenia
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abnormally high WBC count
Leukocytosis
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produce antibodies
Lymphocytes
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protect against parasitic irritants that cause allergies
Eosinophils
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produce heparin, which inhibits clotting
Basophils
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stages of clotting
- cut in vessel
- prothrombin released
- Prothrombin activator and calcium convert prothrombin to thrombin
- Thrombin triggers formation of fibrin, which traps RBCs to form a clot
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substance that can activate immune system
Antigen
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substance made by body in response to stimulation by an antigen
Antibody
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Rh factor antigen present in RBCs
Rh-positive blood
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Rh factor antigen absent in RBCs
Rh-negative blood
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may occur when Rh-negative mother
carries a second Rh-positive fetus; caused by mother’s Rh antibodies reacting
with baby’s Rh-positive cells
Erythroblastosis fetalis
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