Definition of pulmonary vein in US English:

pulmonary vein


  • A vein carrying oxygenated blood from the lungs to the left atrium of the heart.

    • ‘The newly oxygenated blood leaves the lungs through the pulmonary veins and heads back to the heart.’
    • ‘The right atrium receives deoxygenated blood (dark red) from the body; the left atrium receive oxygenated blood from the lungs the pulmonary veins.’
    • ‘The left atrium receives oxygenated blood from the lungs via the pulmonary vein and transfers it through the mitral valve into the left ventricle.’
    • ‘In the lungs, oxygen enriches the blood, which circulates to the heart's left side in blood vessels called pulmonary veins.’
    • ‘Blood, rich in oxygen and poor in carbon dioxide, enters the left atrium from the lungs via pulmonary veins.’