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Definition of Inferior vena cava

Inferior vena cava: A large vein that receives blood from the lower extremities, pelvis and abdomen and delivers it to the right atrium of the heart.

Atrial Fibrillation Illustration

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=10779
Last Editorial Review: 6/14/2012

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