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Explain how to flow through a blood vessel is determined. Explain what a “pressure difference” is...

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Medical Sciences

Explain how to flow through a blood vessel is determined.Explain what a “pressure difference” is and why it matters to flow.Define resistance and explain how resistance affects flow. List anddiscuss the 3 factors which influence the resistance throughvessels. For each factor explain the mechanism by which it affectsthe resistance. Which one of these 3 as the largest impact onresistance? Explain why it has the largest impact on flow. Whichone of these 3 can readily be adjusted by the body?

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3.7 Ratings (653 Votes)
Blood is ejected from the left ventricle and flows into theaorta which branches into arteries arterioles and eventuallycapillariesThe heart is the driver of the circulatory system pumping bloodthrough rhythmic contraction and relaxation The rate of blood flowout of the heart often expressed in Lmin is known as the cardiacoutput COFlowthrough a blood vessel is determined by the MeanVolume of blood flowMean Volume of bloodflow This is the volume of blood that flows intothe circulatory system in a given unit of time It is the productof mean velocity and the crosssectional area of the vascular bedSoQ V AWhere Q Quantity of bloodV Velocity of blood flowA Crosssectional area of the blood vesselsFactors maintaining Volumeof blood flowPressure gradientResistance to blood flowThe velocity of blood flowPressure gradient The volume of blood flowingthrough any blood vessel is directly proportional to the differencebetween the    See Answer
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