Do the veins rely on any other body part to work?

Veins rely on the pumping action of the heart to circulate blood throughout the body. When the heart contracts, it puts pressure on the veins, which helps to push blood back to the heart. In addition, the muscles surrounding the veins also help to circulate blood by squeezing the veins and pushing blood toward the heart. Therefore, the veins rely on both the heart and the muscles of the body to work properly.