Venous Return

Venus Return-

• Pressure of blood in large vessels is too low to return blood to heart
• Valves in veins aid the venous return
• The valves allow blood to travel up towards the heart, but close so blood doesn't flow back down the veins
• The skeletal muscle pump also helps- this squeezes veins, forcing blood towards the heart
• The valves and the skeletal muscle pump work in unison, ensuring that the blood travels back too the heart
• Exercise increases this effect
• Blood pooling happens when you suddenly stop exercising and the skeletal…