BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
CARDIOVASCULAR SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What is the definition of stroke volume?
|
|
The amount of blood pumped out of the heart per minute
|
|
|
The amount of blood pumped out of the heart in one beat
|
|
|
the speed at which blood travels
|
|
|
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: -(i) During a cardiac cycle each ventricle pumps out approximately 70mL of blood which is called the stroke volume.
Detailed explanation-3: -Stroke volume is the amount of blood the left ventricle pumps out in one cardiac cycle. This is around 70 ml. Cardiac output is the volume of blood pumped out by each ventricle per minute. Now to get cardiac output, we have to multiply stroke volume with the normal heart rate of 72 beats/min and we get 5, 040 ml/min.
There is 1 question to complete.