They prevent blood from moving down toward the feet. Apex
they prevent blood from moving down toward the feet
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..
they prevent blood from moving down toward the feet
As with all large blood vessels... the valves stop the blood flowing 'backwards' between heart beats. They're like a one-way door - so blood flows in just one direction.
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..
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..
I do not no
to prevent blood backflow
The valves in the veins
To reduce pooling due to gravity.
I don't know what it is. I'm sorry :(
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.