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10 Cards in this Set
- Front
- Back
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What is Blood Pressure?
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Blood Pressure is the amount of pressure exerted by the blood on the wall of a blood vessel (the pressure in arteries)
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What is the pressure difference in the end of blood vessels?
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The pressure difference in the end of blood vessels is the velocity of blood slows down at the end of blood vessels due to friction
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What is blood viscosity?
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Blood Viscosity is the thickness of blood
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What is systolic pressure?
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Systolic Pressure is the large number and when the blood travels through the arteries
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What is diastolic pressure?
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Diastolic Pressure is the smaller number and is when the heart relaxes and blood flows back to the heart.
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What is cardiac output?
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Cardiac Output is the amount of blood ejected by the left ventricle into the aorta each minute (in a normal adult about 5.25 liters/min)
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What happens when there is a decrease in blood volume (hemorrhage)?
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A decrease in blood volume (hemorrhage) decreases the amount of blood circulated through the arteries each minute --> blood pressure drops
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What happens when there is an increase in blood volume (high salt intake)?
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An increase in blood volume (high salt intake) increases blood pressure
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What is Peripheral Resistance?
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Peripheral Resistance is the resistance to blood flow in peripheral circulation away from the heart
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What is the major function of arteries?
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The major function of arteries is controlling peripheral resistance by changing their diameters
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