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to prevent blood backflow

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Q: Why do the veins in your legs need valves?
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What is the function of the valves in veins in legs?

The valves help to prevent blood from seeping backwards. They provide a one way valve. When valves begin to fail blood may become stagnant and cause unsightly varicose veins - usually in the legs..


What is the function of valves in veins in the legs?

The valves help to prevent blood from seeping backwards. They provide a one way valve. When valves begin to fail blood may become stagnant and cause unsightly varicose veins - usually in the legs..


What prevents blood from pooling in the legs of humans and pigs?

The valves in the veins


What is Cardiac muscle is responsible for?

It's responsible for the beating of the heart and closing of valves in the veins of the legs.


What is the function of the valves in veins in the leg?

The valves help to prevent blood from seeping backwards. They provide a one way valve. When valves begin to fail blood may become stagnant and cause unsightly varicose veins - usually in the legs..


What is the function of the valves in the veins in the leg?

The valves help to prevent blood from seeping backwards. They provide a one way valve. When valves begin to fail blood may become stagnant and cause unsightly varicose veins - usually in the legs..


How is blood kept moving in the veins of the legs?

The muscles in your legs help transport blood back to your heart. The veins in your legs also have valves to help this process and prevent blood from flowing back down towards your feet.


What do veins have to prevent blood from flowing backward?

One-way valves prevent the back flow of bloodThere are tiny one way valves throughout a vein. These stop blood from flowing backwards. Interestingly, when these valves in veins in the legs malfunction, the result are varicose veins.


How do the valves within the veins of the arms and legs help blood 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.


What are the valves in the veins called?

To prevent back flow of blood as the blood pressure in veins is greatly decreased compared to artieries


Why do varicose veins develop if a valve is not working properly?

In order to pump the blood back up the legs to the body and heart, there are small, one-way "flapper" valves in the veins that prevent the blood from flowing backwards back down into the legs. These valves help reduce the pressure in the veins and allow the movement of the muscles in the legs to help squeeze the blood upwards. Without the valves, this squeezing is more likely to push the blood down instead of up.


How do I get dark red and purple veins to disappear from my legs without any type of surgery or anything.?

If they are big and kind of stick out a little, they might be varicose veins. Lower extremity veins normally have valves in them to help pump blood from the legs back to the heart. In varicose veins, these valves have stopped working. Varicose veins can be potentially dangerous and can lead to blood clots. I'm pretty sure surgery is the only fix.