The pulmonary veins are large blood vessels that receive oxygenated blood from the lungs and drain into the left atrium of the heart. There are four pulmonary veins two from each lung. The pulmonary veins are among the few veins that carry oxygenated blood.
This page contains content from the copyrighted Wikipedia article "Pulmonary vein"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.
