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Encyclopedia > Superior vena cava

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	Superior vena cava - Wikipedia, the free encyclopedia (295 words) The superior vena cava (SVC) is a large but short vein that carries de-oxygenated blood from the upper half of the body to the heart's right atrium. It is formed by the left and right brachiocephalic veins (also referred to as the innominate veins) which receive blood from the upper limbs and the head and neck. THORAX: brachiocephalic - internal thoracic - venae cavae - superior vena cava - azygos - hemiazygos Inferior vena cava - Wikipedia, the free encyclopedia (547 words) The inferior vena cava (or IVC) is a large vein that carries de-oxygenated blood from the lower half of the body into the heart. The vein that carries de-oxygenated blood from the upper half of the body is the superior vena cava. Since the inferior vena cava is primarily a right-sided structure, unconconscious pregnant females should be turned on to their left side (the recovery position), to relieve pressure on it and facilitate venous return.
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