Veins have thinner partitions than arteries simply because they operate less than lower pressure. In addition they comprise valves that avert backflow, ensuring that blood returns proficiently to the heart. Like arteries, veins include 3 layers but with less muscle and elastic tissue. Raynaud syndrome – a peripheral vascular condition https://www.sgvascularctr.com/a-complete-guide-to-aortic-aneurysm-in-singapore/