Pulmonary vein and artery. Coloured scanning electron microscope (SEM) image of a human pulmonary vein (left) and artery (right). Pulmonary arteries c

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Pulmonary vein and artery. Coloured scanning electron microscope (SEM) image of a human pulmonary vein (left) and artery (right). Pulmonary arteries carry deoxygenated blood from the heart to the lungs, and pulmonary veins carry oxygenated blood back to the heart to be pumped around the body.

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Photo credit: © PIR/CNRI/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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