Subclavian vein

The subclavian vein is a large vein located beneath the collarbone that is responsible for draining blood from the upper limb, shoulder, and chest wall back to the heart. It runs under the clavicle (collarbone) and joins with other veins to form part of the larger system that circulates blood throughout the body. Its key role is to carry deoxygenated blood away from the arm and shoulder, helping maintain proper blood flow and circulation in the upper body. The subclavian vein is important in medical procedures like kidney dialysis and central line placements.