What is the term for the amount of blood pumped with each contraction?

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Multiple Choice

What is the term for the amount of blood pumped with each contraction?

Explanation:
The amount of blood pumped with each contraction is stroke volume. It’s the volume ejected from a ventricle with every heartbeat, usually measured in milliliters per beat. This differs from cardiac output, which is the total blood pumped per minute and equals stroke volume times heart rate. It also isn’t the total blood in the body (blood volume) or the heart’s beat speed (heart rate). A typical stroke volume in a healthy adult is around 60–100 mL per beat, and it can change with factors like preload (venous return), afterload (arterial pressure), and contractility.

The amount of blood pumped with each contraction is stroke volume. It’s the volume ejected from a ventricle with every heartbeat, usually measured in milliliters per beat. This differs from cardiac output, which is the total blood pumped per minute and equals stroke volume times heart rate. It also isn’t the total blood in the body (blood volume) or the heart’s beat speed (heart rate). A typical stroke volume in a healthy adult is around 60–100 mL per beat, and it can change with factors like preload (venous return), afterload (arterial pressure), and contractility.

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