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Unit 2 Essay ?'s

QuestionAnswer
Components and Composition of Blood cellulr + liquid components, specialized tissue where living blood cells aka formed elemens are suspended in plasma Erythrocutes, leukocytes,granulocytes, agranulocytes, platelets
Erythrocyes transport 02 + CO2, biconcave, anuclueate
Leukocytes spherical, nucleated
Neutrophil phagocytize bacteria
eosinophil kill parastitc worms
basophil release histamine
lymphocyte immune response by direct cell attack
monocyte phagocytosis, developed by macrophages
platelets contain granules + seal small tears in blood vessels
Components of heart sup. vena cava, inf. vena cava, aorta, aortic arch, AV valve: tricuspid, mitral (bicuspid), Semilunar valve: aortic, pulmonary, R&L atrium, R&L ventricle,
Structural components of arteries, veins, and cappilalries art- small lumen, lrg tunica media, large elastic lumina, no valves vein-lrg lumen, small tunica media, have valves & no elastic lumina cap- thing walls of tunica intima
Functional components of arteries, veins and cap art-conduct blood away from heart vein-return blood toward heart cap- only place for exchange between blood & tissue cells
Fibrous Skeleton dense fibrous connective tissue, attachment of muscle valves, insulates atria from ventricles,prevents heart from over stretching
clotting response responds to vessel damage, PTA formed, PTA converts prothrombin-thrombin, thrombin converts fibgrogen-fibrin, fibrin then forms platelet plugs (WBC's RBC's)
materials get exchanged in the blood in the heart by hydrostatic pressure + only happens @ cap. Water + solutes can freely pass b/t ISF and blood via diffusion across cap walls
neural factors of maintenance of blood flow Sympathetic activation leads to stimulation of the cardioacceleratory and vasomotor centers; parasympathetic activation stimulates the cardioinhibitory center.
hormonal factors of maintenance of blood flow Hormones involved with blood pressure regulation over the short-term include epinephrine and norepinephrine. These hormones promote peripheral vasoconstriction and venoconstriction, and increase the cardiac output. EPT=stimulates RBC prod= inc in viscos
local factors of maintence of blood flow changes in capillary hydrostatic and osmotic pressures alter the rates of filtration and resorption across capillary walls.
Created by: jmj014
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