bgecause the blood is under low pressure because of the size of the lumen (the inside of the vein) it has to get all the way back to yr heart from yr leg say so the valves prevent backflow and help it get up their
Nothing, it is only pressure that keeps blood moving in the right direction in arteries. Veins have valves that prevent backflow of blood, but arteries do not.
valves are not present in arteries because in arteries there is high blood pressure
No arteries have valves, only veins have valves to stop backflow.
valves
valves
No, veins have the valves, arteries don't.
Arteries carry blood with oxygen to the heart. Veins carry blood full of carbon dioxide to the lungs. Arteries have a thick wall. Veins have a thin wall. Arteries have no valves. Veins have valves.
Veins, arteries or valves
valves are only present in veins to stop the blood to move backwards through the vein but in arteries the muscle puts alot of pressure on the blood which stops it from moving in the wrong direction
No, veins have the valves, arteries don't.
Veins do not pulsate Arteries pulsate Veins can easily collapse Arteries do not collapse (except in shock) Veins contain valves Blood pressure is low in the veins and higher in the arteries
Arteries carry blood away from the heart. Veins return blood to the heart.