What largely determines preload?
A)end-systolic volume (ESV)
B)end-diastolic volume (EDV)
C)afterload
D)stroke volume

Question

Quizplus · Accepted Answer

End-diastolic volume (EDV) is the volume of blood in the heart at the end of diastole (when the heart is filling with blood). This largely determines preload, which is the amount of stretch on the heart muscle before it contracts. The greater the EDV, the greater the preload and the stronger the subsequent contraction.

What Largely Determines Preload