Stroke volume: Simply put

Simply put, stroke volume is the amount of blood that is expelled with each heartbeat. Control of stroke volume is therefore directly related to the amount the heart fills and the heart’s ability to pump blood into the arteries. Learn how stroke volume (SV) is defined and regulated by preload, afterload and inotropy. SV is the difference between ventricular end-diastolic volume (EDV) and end-systolic volume (ESV), and it affects cardiac output and blood pressure. The stroke volume (SV) is referred to as the volume of blood ejected into the aorta or main pulmonary artery during each cardiac cycle. The stroke volume index (SVI) is the stroke volume corrected for the body surface area (BSA). Usage The strok... In cardiovascular physiology, stroke volume (SV) is the volume of blood pumped from the ventricle per beat.