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22 Cards in this Set
- Front
- Back
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blood pressure is pressure exerted on ____ ____
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vessel walls
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blood pressure is measured by mm Hg in ____ ____
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systemic arteries
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blood pressure can be measured with a ____
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sphygmomanometer
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sphygmomanometer is pressure in a cuff that compresses the ____ until there is no ____ heard
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artery - sound
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3 pressure readings
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systolic pressure - diastolic pressure - pulse pressure
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systolic pressure is taken at ____ pulse as a pressure in cuff released
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first
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systolic pressure = pressure while ____ ____ contracting
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heart ventricles
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average systolic pressure
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120mm Hg
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diastolic pressure = pressure when ____ ____ contracting
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ventricles not
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diastolic pressure is taken when cuff released to point where ____ is no longer ____
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sound - audible
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average diastolic pressure
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80mm Hg
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pulse pressure is ____ minus ____
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systolic - diastolic
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pulse pressure = measurement of ____ exerted on ____ ____
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stress - small arteries
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3 influences on blood pressure
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cardiac output - peripheral resistance - blood volume
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cardiac output =
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(stroke volume) x (heart rate)
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normal cardiac output is
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5.5 liters per minute
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peripheral resistance is the ____ to blood ____
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opposition - flow
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3 oppositions of blood flow
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↑with blood viscosity - ↑with length of vessel - ↑resistance with small vessel diameter
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the ____ of the blood vessel have the greatest influence on blood pressure
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diameter
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blood volume is mainly regulated by ____
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kidneys
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↑in blood volume =
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↑in blood pressure
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↓in blood volume =
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↓in blood pressure
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