PATHOLOGY

Detailed explanation-1: -Veins: Unlike arteries, veins don’t have to carry highly pressurized blood, but they do have to carry large volumes of deoxygenated blood back to your heart. Thin, less elastic walls help them handle high volumes and low pressure. Most veins have valves that open and close.

Detailed explanation-2: -Veins comprise valves, which prevent the backward flow of the blood. The valves are bicuspid, that is, they comprise two flap-like compositions. In the veins, the valves ensure that the flow of blood takes place only in one direction. On the other hand, arteries carry oxygenated blood away from the heart.

Detailed explanation-3: -What are Vein Valves? Interspersed throughout your veins are small crescent-shaped flaps of tissue, known as valves, that help prevent a backflow of blood. These valves project from the innermost layer of the vein wall to the center of the vein and are angled towards the heart in the direction of venous blood flow.