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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

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What do arteries contain that prevent the back flow of blood?

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.


Why are valves not present in arteries?

valves are not present in arteries because in arteries there is high blood pressure


Do the arteries of limbs has valves?

No arteries have valves, only veins have valves to stop backflow.


What do veins have that arteries do not?

valves


What do arteries have that veins do not?

valves


Does arteries have valves to prevent back flow?

No, veins have the valves, arteries don't.


What statement is true of arteries?

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.


What are the chambers connected by?

Veins, arteries or valves


Why are valves present in veins but now in arteries?

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


Do the larger arteries contain valves to prevent the back flow of blood?

No, veins have the valves, arteries don't.


What is the difference between the blood in the arteries and the blood in the veins?

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


What is the major difference between arteries and veins?

Arteries carry blood away from the heart. Veins return blood to the heart.