Oxygen: The pulmonary arteries bring blood from the right side of the heart to the lungs, and the pulmonary veins return newly oxygenated blood back to the heart in the left atrium.
Answered 3/17/2013
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Pulmonary blood flow: The pulmonary artery cases blood from the right atrium of the heart to the lungs. It is there where the carbon dioxide in the blood is exchanged for oxygen. The blood is then returned to the left side of the heart, where this oxygen rich blood is pumped to the cells of the body delivering oxygen to them.
Answered 3/16/2013
5.2k views
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