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Arteries do not have valves because the heart provides the pressure needed to send blood through the system. Veins have valves because venous pressure is often not great enough (as the blood must overcome gravity and other forces) to return the blood to the heart.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoAs the blood in the veins flow slowly and with a low pressure thus to prevent this back flow of blood veins have valves but as the blood in the arteries move fast and are under a high pressure they don't have valves .
Wiki User
∙ 14y agocause veins have no huge pump behind them pushing the blood through, so they have valves to keep the blood from pooling in your extremities.
Wiki User
∙ 13y agoBecause veins return blood to the heart, so most of them face upwards. Blood would flow towards the floor and away from the heart if the valves were not present to prevent backflow.
Wiki User
∙ 12y agobecause the veins collects the deoxygenated blood.
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Do the arteries of limbs has valves?
No arteries have valves, only veins have valves to stop backflow.
What do arteries have that veins do not?
valves
What do veins have that arteries do not?
valves
Does arteries have valves to prevent back flow?
No, veins have the valves, arteries don't.
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.
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
Do the larger arteries contain valves to prevent the back flow of blood?
No, veins have the valves, arteries don't.
One-way valves are found in which blood vessels?
Veins. Veins are blood vessels that carry blood from tissues and organs back to the heart; they have thin walls and one-way valves.
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.
Arteries contain valves that do what?
No arteries do not contain valves since there is enough pressure from the heart to force blood through these vessels without significant backflow between contractions.
