👉 Veins are blood vessels responsible for transporting deoxygenated blood from the body's tissues back to the heart. They have thinner walls and larger diameters than arteries, allowing them to hold more blood due to lower pressure. Veins contain valves that prevent the backward flow of blood, ensuring it moves towards the heart. These valves are crucial in maintaining proper circulation, especially in the lower extremities where gravity can hinder blood flow.
