Veins in the extremities carry blood to the heart and lungs, where the blood is oxygenated. As the blood returns to the heart from the lungs, the arteries carry the oxygen-rich blood out to the body.
Review Date: 4/27/2007
Reviewed By: Rita Nanda, M.D., Department of Medicine, Section of Hematology/Oncology, University of Chicago Medical Center, Chicago, IL. Review provided by VeriMed Healthcare Network.