AP BIOLOGY

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: -It pumps about 55-80 ml (1/3 cup) of blood with each beat for adults and around 25-85 ml per beat for children. An adult heart pumps about 6, 000-7, 500 liters (1, 500-2, 000 gallons) of blood daily.

Detailed explanation-3: -Stroke Volume (SV) is the volume of blood in millilitres ejected from the each ventricle due to the contraction of the heart muscle which compresses these ventricles. SV is the difference between end diastolic volume (EDV) and end systolic volume (ESV).

Detailed explanation-4: -Stroke volume is the difference between the total amount of blood in the ventricles after completely filling (end-diastolic volume) and the amount of blood left behind after ventricular contraction (end-systolic volume).