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Cards In This Set
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Blood flow
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Measures amount of blood traveling through organ, tissues, or blood vessel in a given period of time (mL/min)
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Velocity of blood flow
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Depends on cross-sectional area through which it flows
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Blood perfusion
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Describes flow of blood through volume or mass of tissue per unit of time (mL/min/g)
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Total blood flow in a resting individual
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Is constant and equal to his or her cardiac output
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Blood flow through a particular organ
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Varies from minute to minute as blood gets redirected through different organ systems
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Hemodynamics
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Based on pressure and resistance
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Blood flow is ____________ to pressure between 2 points
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Directly proportional
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Blood flow is __________ to resistance
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Inversely proportional
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Blood pressure
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The force exerted by the blood against walls of a blood vessel
*determined by cardiac output, blood volume, and resistance |
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Systolic blood pressure
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Occurs during ventricular contraction (120 Hg)
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Diastolic blood pressure
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Occurs during ventricular relaxation (75 Hg)
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Pulse pressure
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Difference between systolic and diastolic blood pressure
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Mean arterial blood pressure (MABP)
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Measures pressure on blood vessels based on diastolic pressure and pulse pressure
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Peripheral resistance
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Antagonist to blood flow because of friction between blood and walls of blood vessels
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Resistance is ______________ to viscosity
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Directly proportional
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