12.2 Pressure, Flow, and Resistance

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5 Terms

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Hemodynamics

The factors describing what determines the movement of blood, in particular, pressure, flow, and resistance

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Hydrostatic Pressure

Pressure exerted by fluid

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Poiseuille’s Law

Resistance is directly proportional to fluid viscosity and vessel length, and inversely proportional to the fourth power of the vessel radius

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Resistance (R)

Hindrance to movement through a particular substance, tube, or opening

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Viscosity

Measure of friction between adjacent layers of a flowing liquid; property of fluid that makes it resist flow