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Ventricular Volume During Cardiac Cycle

End Systolic Volume

• Its volume of blood left in the ventricles at the end of the systole.

• Normally it's 50 ml in each ventricle.

End Diastolic Volume

• It's the volume of blood in the ventricles at the end of the diastole.

• Normally it's 120 ml in each ventricle.

Stroke Volume

• Its volume of blood ejected by ventricles during each heartbeat.

• Stroke volume = End Diastolic Volume - End Systolic Volume

• Normally it's 70 ml for each ventricle.

Ejection Fraction

• It's the fraction of end-diastolic volume that is ejected during each systole.

• Ejection fraction = (Stroke volume / End Diastolic Volume) x 100

• Normally its about 60%

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▶️ Pressure-Volume Diagram During the Cardiac Cycle

Related Topics:

• Ventricular Pressure During Cardiac Cycle