Definition of Pulmonary Veins

pulmonary veinsThe large blood vessels that bring blood to the left side of the heart from the lungs. The main pulmonary veins arise from the lungs and branch immediately into the right pulmonary vein and the left pulmonary vein.

The right pulmonary vein carries blood from the right lung and the left pulmonary vein carries blood from the left lung. The pulmonary veins are the only veins in the body that transport oxygenated blood.

Please see the overview section “The Cardiovascular System.”


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