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Factors Affecting Stroke Volume (SV)

STUDY
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End-diastolic volume (EDV)
*Filling time (duration of ventricular distole)
*Venous return
*Preload (degree of stretching of ventricles, allows muscle cells to create tension)
End-systolic volume (ESV)
*Preload (degree of stretching of ventricles, allows muscle cells to create tension)
*Contractility (force produced)
*Afterload (tension needed to force open semilunar valves)