Which of the following factors determines preload?
A) end -diastolic volume and end -systolic volume
B) heart rate and venous return
C) peripheral resistance and tension
D) the pressure in the aorta and the lungs
E) parasympathetic activity of the ventricles

Question

Quizplus · Accepted Answer

Preload is primarily determined by venous return, which affects the end-diastolic volume. The heart rate can also influence preload by affecting the time available for ventricular filling.

Which of the Following Factors Determines Preload