Single correct option
Which one of the following blood vessels carries oxygenated blood?
- A. Pulmonary artery
- B. Pulmonary vein
- C. Vena cava
- D. Renal vein
Show answer and solution
Answer: (B) Pulmonary vein
The pulmonary vein carries oxygen-rich blood from the lungs to the left atrium, which is an exception to the rule that veins carry deoxygenated blood. The pulmonary artery carries deoxygenated blood to the lungs, and the vena cava brings deoxygenated blood to the right atrium. The renal vein carries blood relatively low in oxygen and waste.
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