Exercise results in skeletal muscles compressing veins which encourages blood to return to the heart.In this scenario,which of the following is correct?
A) preload increases
B) venous return decreases
C) stroke volume decreases
D) end diastolic volume (EDV) decreases

Question

Quizplus · Accepted Answer

Preload is the amount of blood in the ventricles just before they contract. The compression of veins by skeletal muscles increases the amount of blood returned to the heart, which leads to an increase in the volume of blood in the ventricles (preload).

Exercise Results in Skeletal Muscles Compressing Veins Which Encourages Blood