Blood used by the body is brought back to the heart and lungs by the veins of the body. Once the blood has gathered more oxygen from the lungs, it is pumped back out to the body through the arteries.
Last reviewed 5/15/2013 by John A. Daller, MD, PhD., Department of Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
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