Stroke Volume Depends on All of the Following Factors Except

Question

Stroke volume depends on all of the following factors except
A) end diastolic volume.
B) the contractility of the ventricle.
C) the pressure required to pump blood into the aorta.
D) venous return of blood to the heart.
E) respiratory rate.

Accepted Answer

Respiratory rate does not directly affect stroke volume. The other factors listed, such as end diastolic volume, contractility of the ventricle, pressure required to pump blood into the aorta, and venous return of blood to the heart all have an impact on stroke volume.