I don't know what it is. I'm sorry :(
The valves stop the blood flowing backwards through the circulatory system.
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 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.
I do not no
The blood in veins is not under direct pressure from the heart. It has little valves inside to prevent blood from flowing backwards away from the heart. These valves inside the veins prevent the backflow of blood in veins. They encourage the one-directional flow of blood to the heart.
Valves can be found in the heart aswell as the veins
The blood in veins is not under direct pressure from the heart. It has little valves inside to prevent blood from flowing backwards away from the heart. These valves inside the veins prevent the backflow of blood in veins. They encourage the one-directional flow of blood to the heart.
valves prevent backflow of blood
Valves are found in the heart and in some veins.
Valves can be found in the heart. They sit between the Atria and the Ventricles and help aid cardiovascular activity.
They ensure that the blood flows only in one direction (back toward the heart).
in both the valves blood flow in one direction.