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19 Cards in this Set
- Front
- Back
Blood Functions |
1. Transport 2. Regulation 3. Defense |
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Whole blood is made out of..... |
Plasma - water and dissolved plasma proteins Formed Elements - RBC's, WBC's, Platelets
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Plasma Proteins |
1. Albumnin 60% 2. Globulins 35% 3.Fibrinogen 4% |
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Hemoglobin |
Red pigment that gives blood its color. Binds and transports oxygen and CO2
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RBC counts |
Male - 4.5-6.3 million Female - 4.2-5.5 million |
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Blood Types |
A - surface antigen A B - surface antigen B AB - surface antigen A&B O - Neither A or B
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Types of WBC's |
1. Neutrophils 2. Eosinophils 3. Basophils 4. Monocytes 5. Lymphocytes
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Hemostasis (cessation of bleeding) |
1. Vascular phase 2.Platelet phase 3. Coagulation phase |
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Vascular Phase |
-Stimulate smooth muscle contraction -plasma membranes become sticky to platelets |
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Platelet Phase |
-platelet adhesion sticks to basement membranes -Form platelet plug
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Coagulation phase (3 pathways) |
1.Extrinsic pathway 2. Intrinsic pathway 3. Common pathway
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Extrinsic Pathway |
-happens outside bloodstream -Damaged cells release TF (tissue factor) -activates factor X |
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Intrinsic pathway |
-happens within bloodstream -activates collagen -activates factor X |
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Common Pathway |
-extrinsic and intrinsic pathways converge -converts prothrombin to thrombin -converts fibrinogen to fibrin - |
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Neutrophils |
-50-70% -Very active -phagocytic |
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Eosinophils |
-2-4% -attack large parasites -sensitive to allergens -control inflammation -excrete toxic compounds |
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Basophils |
-less than 1% -Accumulate in damages tissue -release histamine and heparin
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Monocytes |
-2-8% -Large, become macrophages |
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Lymphocytes |
-20-30% -Larger than RBC's -immunity cells (T-cells, B-cells, NK cells) |