MedlinePlus Medical Encyclopedia: Circulatory system

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Circulatory system

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.

Update Date: 8/8/2008

Updated by: Charlotte Grayson, MD, Private Practice specializing in Internal Medicine, Smyrna, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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