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Functions of Blood (name 5)
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TransportRegulation of pH & osmosisMaintenance of body temperatureProtection against foreign substancesClot Formation
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Proteins in Plasma
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Albumins: Big, important for viscosity, maintain osmotic pressureGlobulins: transport-yFibrogen: makes clots
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Albumins
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Plasma protein:Physically largeImportant for viscosityMaintain osmotic pressure
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Globulins
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Plasma protein:Transport
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Fibrogen
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Plasma protein:Makes clots
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Granulocytes
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Large granulesInvolved in immunity
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Agranulocytes
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Includes:Lymphocytes: T & B cellsMonocytes: Macrophages
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Hematopoiesis
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Process of blood cell formation
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Stem Cells
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Live in bone marrow before becoming blood cells
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RBC Transport
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Most O2 transported by hemoglobin Most CO2 transported as bicarbonate ions (because of influence of carbonic anhydrase) and transported in plasma
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Hemoglobin
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4 heme groups4 globin molecules, each with 1 iron atom
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Erythropoiesis
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EPO (Erythropoietin) is the hormone that stimulates RBC production. Produced in kidneys. Homeostatically controlled by blood O2 levels.
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WBC Movement
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Ameboid: pseudopodia make 'em move like amoebaDiapedesis: cells become thin, elogate, and then move btwn or through endothelial cellsChemotaxis: attraction to and movement toward foreign materials
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Hemostasis
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Arrest of bleeding
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Vascular Spasm
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A type of hemostasisVasoconstriction of damaged bvs; leaks controlled by platelets
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