What is "superior vena cava"?

The superior vena cava is a major vein that carries deoxygenated blood from the upper body back to the heart. It receives blood from various veins, including the jugular veins, subclavian veins, and brachiocephalic veins. Located in the chest, the superior vena cava delivers the collected blood directly into the right atrium of the heart, allowing for efficient circulation and oxygenation of the body.