I do know what each term means. That is, i know that stroke volume is: the volume of blood pumped by each contraction of a ventricle, while ventricular end-diastolic volume is: the volume of blood in the ventricle just before systole. However I can't relate the two in terms of, say, graphs or in the mode of action of the heart between this period(s).


closed as unclear what you're asking by AliceD, anongoodnurse, kmm, rg255, James May 23 '16 at 4:41

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  • $\begingroup$ I'm not sure what you're asking. Both are simply volumes of blood. They are different because not all of the blood in the ventricle is ejected. It sounds like you're asking about the cardiac cycle, not volumes, but I'm not sure. (The red line is the graphic "relationship" between the two.) $\endgroup$ – anongoodnurse May 21 '16 at 14:45
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    $\begingroup$ Thanks! I did see this diagram before on Wikipedia but i might have overlooked the label of ventricular volume. Thanks again! $\endgroup$ – James May 23 '16 at 15:21

The simplest relationship is "EDV=SV+ESV", "EF=SV/EDV" (EDV: end-diastolic volume, SV: stroke volume, ESV: end-systolic volume, EF: ejection fraction)


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