The transportation of blood depends mainly on the pumping function of the heart and the contraction and diastole of blood vessels.
1. The pumping function of the heart serves as the prime mover of blood transportation. The heart, as the power organ of the blood, is self-regulating and can automatically undergo rhythmic excitation when the body is not stimulated from outside. The heart can automatically and rhythmically contract and diastole to push the blood to flow outward, and the pumping effect of the heart can make the blood flow back.
2. Venous blood vessels have venous valves that control the flow of blood in a certain direction. In addition, the contraction of the muscular tissue of the blood vessels can be used as a driving force for the return of blood, which can squeeze the blood vessels and make the blood flow in the direction of the heart.
Risk Warning: When problems with blood transportation occur, they can have serious consequences and should be treated promptly and actively by a doctor.