PATHOLOGY

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: -Overview. Your stroke volume is the amount of blood your heart pumps each time it beats, and your heart rate is the number of times your heart beats per minute. During exercise, your body may need three or four times your normal cardiac output, because your muscles need more oxygen when you exert yourself.