Muscle movement and one-way valves are the driving forces for venous return
Veins have valves in them which help transport the blood.
because you have main arteries that blood flows through to help pump the heart. Veins carry the blood through
because of the blood muscles that push the heriastic pulley. the move the blood through the veins and arteries.
http://www.fi.edu/learn/heart/vessels/veins.html this might help you out a bit more. and yes blood does flow through your veins.
Really, I know just a factor which is that the veins have a valve which helps to push the blood. This is because the vein has a thin muscular wall and low pressure. Therefore,the valve is there to prevent the flow back of blood.
Since the blood in your veins is traveling back to your heart, it is fighting gravity. In order to help the blood along, veins have valves that will close after the blood has gone through to prevent backflow. Also, when muscles contract, it pushes the blood upwards because of the contraction.
contraction of muscle, larger veins in your body, breathing movements
The heart, the blood vessels - arteries, capillaries, and veins are five part of the cardiovascular system. Heart help moves blood throughout your body. The blood vessels help blood transport through body, even in or out of the heart. Arteries is the blood vessel that help carries blood away from the heart. The major function of capillaries tubes is that they connect arterioles to venules. As blood travels through veins, valves in the veins help kepp the blood from flowing backward.
It is valves, muscles contracting, and breathing.
what two things help the blood in veins return to the heart
Muscular contraction in the extremities moves the blood through the veins, the valves only allow blood to move toward the heart.
The actions or forces that allow blood in the veins to return to the heart is that the blood in the veins is moving through the veins at a lower pressure, so the valves and muscular pumps withing the body help the blood circulate back to the heart.
Veins are assisted in returning blood to the heart through the contraction of skeletal muscles. These muscles, along with the veins' valves, help blood return to the heart.
to keep you breathing for starters then their are people at hospitals that need blodd from ur veins to help others that need it.
The muscles on the outside of the veins help the blood move around. This is also the reason for why the walls of veins are thin.
Simple the blood is pumped by contractions and well as the relaxation of your muscles the main one being your heart which circulates the blood constantly. Also you must have nice unclogged arteries so the blood can circulate freely without any blockage.
Arteries have a thicker muscular layer to deal with, and help control, higher pressures inside the lumen as blood is pumped through them by the heart. And veins, have valves that help them move blood back toward the heart.
veins help us live because it carries the blood around our body
arteries (away from the heart) to arterioles to capilliaries to venules to veins (back into the heart)
Because muscles on the outside of the veins help the blood move. Within the veins are tiny one-way valves that normally keep blood flowing back toward the heart. When the blood arrives at the right atrium, it is pulled in by the expansion of the chamber, which lowers the pressure within the atrium.
Veins carry deoxygenated blood.This carry deoxygenated blood from all over the body to heart where the blood is send to purify in lungs .There blood's pigment haemoglobin traps the blood and the blood gets purified(oxygenated) and carry by arteries.Thus, we can say that the veins has a very important role in blood circulation they transport blood through the body.
Muscle contractionone way valvesbreathing movements
Muscle contraction one way valves breathing movements
as you massage it relaxes your veins,arteries etc. allowing the blood to flow through more easily