I do not no
To reduce pooling due to gravity.
I don't know what it is. I'm sorry :(
To stop the blood travelling the wrong way down the vein. One way system lol.
Valves in the peripheral veins prevent blood from backflow during the off beat of the heart. If not for the valves, the flow of blood would tend to pool at the extremities.
The valves stop the blood flowing backwards through the circulatory system.
The valves help the blood to go in one direction against gravity up towards the heart and prevent it from reluxing down. In case these valves malfunction varicose veins occur.
The valves keep blood flowing in one direction. And there are even valves in the veins. The system is called a circulatory system and the system must keep going in a circle to function properly.
VALVES
They are called valves, or leaflet valves in the veins, that interlock to prevent backflow of the blood.
These are valves, and are found in veins to prevent blood from flowing backwards.
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..
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..