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In the large veins.
Because in the large veins the blood must fight the gravity, the blood is flowing up, there are valves in them to prevent the blood to fall down again.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agopulmonary veins
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Why is it important for veins to contain valves?
Veins have valves so the blood dosent backflow
Which vein in the human body does not contain valves?
all veins contain valves
What blood vessels contain valves and why?
Only veins contain valves. The valves prevent the backward flow of blood.
Which blood vessel have thin walls and contain valves?
Veins
Name blood vessels that contain valves?
Valves are in the veins.
What prevents blood from flowing in veins?
veins contain valves that prevents blood flowing backwards between heartbeats.There are valves in the veins that stop the blood from flowing backwards.
Name one artery that contain valves?
veins have valves. y
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.
Why is it important that the veins contain valves?
to maintain blood flow and pressure
Do the larger arteries contain valves to prevent the back flow of blood?
No, veins have the valves, arteries don't.
What prevents blood from circulating backward in veins?
Veins contain valves preventing blood from circulating backwards.
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.
