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Most arteries of the adult body carry oxygen-rich blood and the veins carry oxygen-poor blood. how does this differ in the pulmonary artieries and veins?

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The normal oxygenated arteries and deoxygenated veins switches in the pulmonary artery and the pulmonary vein.

These are the only artery/vein combination that will be opposite within the body.

The pulmonary artery will carry DEoxygenated blood from the heart and into the lungs for diffusion/oxygen exchange

The pulmonary vein will carry OXYGENATED blood back to the heart after diffusion in the lungs happen.

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