PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
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Question
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What is the definition of stroke volume?
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The amount of blood pumped out of the heart per minute
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The amount of blood pumped out of the heart in one beat
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the speed at which blood travels
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force exerted by circulating blood on walls of blood vessels
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Explanation:
Detailed explanation-1: -The definition of stroke volume is the volume of blood pumped out of the left ventricle of the heart during each systolic cardiac contraction.
Detailed explanation-2: -Cardiac output is the volume of blood being pumped by the heart in a minute. It is equal to the heart rate multiplied by the stroke volume. During a cardiac cycle, each ventricle pumps out approximately 70 mL of blood. ( Stroke volume) Cardiac output = Stroke volume × Number of beats per minute = 70 mL × 72.
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