Which of the following causes blood to move through veins?
A) vasodilation
B) contraction of smooth muscle
C) contraction of skeletal muscle
D) blood pressure

Question

Quizplus · Accepted Answer

Contraction of skeletal muscle, especially in the legs, helps to push blood through the veins towards the heart. This is known as the "muscle pump" and is an important mechanism for venous return.

Answer: D 
 While blood pressure does not directly cause blood to move through veins, it does provide the force that pushes blood out of the heart and into the arteries. This pressure gradient helps to drive blood through the circulatory system, including the veins.

Which of the Following Causes Blood to Move Through Veins