ANATOMY

GENERAL ANATOMY

CARDIOVASCULAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the definition of stroke volume?
A
The amount of blood pumped out of the heart per minute
B
The amount of blood pumped out of the heart in one beat
C
the speed at which blood travels
D
force exerted by circulating blood on walls of blood vessels
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: -Stroke volume: The amount of blood pumped by the left ventricle of the heart in one contraction. The stroke volume is not all the blood contained in the left ventricle; normally, only about two-thirds of the blood in the ventricle is expelled with each beat.

Detailed explanation-3: -The volume of blood pumped out by each ventricle per minute is called the cardiac output.

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