Anatomy, Thorax, Superior Vena Cava

The superior vena cava is a large, significant vein responsible for returning deoxygenated blood collected from the body back into the heart. It is present within the superior and middle mediastinum. The superior vena cava handles the venous return of blood from structures located superior to the diaphragm. The inferior vena cava handles venous return from the portion of the body inferior to the diaphragm. The superior vena cava is a commonly used site for central venous access.[1]
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