Pulmonary Veins - function and definition

Pulmonary Veins are the 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.

For further discussion of the pulmonary veins within the context of cardiovascular structure and function, please see the overview section “The Cardiovascular System.”

See also AORTA; VENA CAVA.

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