Major arteries, veins and nerves of the body. 1 Head and neck. Veins and arteries of the head (a diagram) 2 Trunk. Veins of the trunk converge from the thorax, abdomen, and pelvis towards the heart. Deoxygenated blood from the thorax ultimately drains into … 3 Upper extremity. 4 Lower extremity.
It’s a single layer of endothelium cells and some connective tissue. This layer sometimes contains one-way valves, especially in the veins of your arms and legs. These valves prevent blood from flowing backward. Veins are often categorized based on their location and any unique features or functions.
Blood from superficial veins is often directed into the deep veins through short veins called connecting veins. Valves in these veins allow blood to flow from the superficial veins to your deep veins, but not the other way. Use this interactive 3-D diagram to explore the venous system.
Veins In The Body Diagram
