Veins are a kind of circuit that returns blood towards the direction of the heart. It is the single way through which deoxygenated blood is brought back to the heart from there it goes to the lungs for the purification process.
What Are The Various Ways To Treat CVI (Chronic Venous Insufficiency)? : Veins are a kind of circuit that returns blood towards the direction of the heart. It is the single way through which deoxygenated blood is brought back to the heart from there it goes to the lungs for the purification process. Veins consist of one-way directional valves that promote blood flow to the heart and prevent mixing the deoxygenated blood with oxygenated.
