Venous return does not depend on
A) respiratory movements.
B) skeletal muscle contractions.
C) the presence of valves.
D) limb movement.
E) blood pressure.

Question

Quizplus · Accepted Answer

Venous return is the volume of blood flowing back to the heart through the veins. It mainly depends on the pressure gradient between the veins and the right atrium of the heart, which is determined by factors such as blood pressure, heart rate, and cardiac output. Respiratory movements, skeletal muscle contractions, the presence of valves, and limb movement can assist venous return, but they are not essential factors.

Venous Return Does Not Depend on