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Definition of Vein, superior vena cava

Vein, superior vena cava: A large vein that receives blood from the head, neck, upper extremities, and thorax and empties it into the right atrium of the heart.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=10526
Last Editorial Review: 6/14/2012

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