Hematology_REVISED - Hematology AVS 350 L Functions of...

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Hematology AVS 350 L
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Functions of Blood 1. Transportation OXYGEN! NUTRIENTS CO and urea HORMONES
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Functions of Blood 2. Regulation Body Temperature 3. Protection (WBC) Against Infection Hemostasis. (Blood loss)
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Blood Tissue Composition Plasma (~55%) Fluid medium  Hematocrit (~45%) PCV Cellular component Red and white blood cells platelets Males have higher hematocrit
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Composition of Blood 1. PLASMA “Supernatant” or the “Solvent” Properties of Plasma 1. 91% Water 2. 7% Blood proteins 3. 2% Electrolytes, Nutrients &  Hormones 4. Carries ~ 1% O 2  
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Blood Proteins TOTAL PROTEINS Protein – largest component of plasma TP = Albumin + Globulins   Albumin   Major protein found in the plasma Regulator of how much body water is  present in plasma
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Other Blood proteins   Globulins α-globulins and β -globulins χ-globulins Fibrinogen
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Composition of Blood Serum Serum=Plasma – Fibrinogen Obtained by allowing whole blood to clot b/ f centrifugation
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Absense of anti-coagulant – Serum blood coagulation Clot (cell) Serum (clear) = formed cell element + fibrin
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Coagulation Process Amino Acid     Prothrombin              Thrombin Fibrinogen              Fibrin (clots) Ca 2+ Clots separates into : a. serum- clear liquid phase b. Cells and fibers – reddish dense mass 
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  Presence of anti-coagulant –  
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