Venous return is the amount of blood that returns to the heart, and an increase in venous return would mean a(n) increase in stroke volume.
The pressure within the veins is increased by contraction of the skeletal muscles surrounding veins, it pushes open the proximal valve and forcing blood toward the heart.
By Frank-Starling mechanism, the left ventricle experiences an increase in pulmonary venous return, which in turn increases left ventricular preload and stroke volume.
Thus an increase in venous return can lead to a matched increase in cardiac output.
Learn more about venous return here:
https://brainly.com/question/9044747
#SPJ4
