The only vein that carries oxygenated blood is called:
- A.Cystic vein
- B.Pulmonary vein
- C.Hepatic portal vein
- D.Cardiac vein
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Veins usually carry blood low in oxygen back to the heart, but the pulmonary veins are the exception. After blood picks up oxygen in the lungs, four pulmonary veins, two from each lung, bring this oxygen-rich blood to the left atrium of the heart.
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