Single correct option
Which blood vessel carries oxygenated blood to the heart?
- A. Pulmonary artery
- B. Vena cava
- C. Pulmonary vein
- D. Renal artery
Show answer and solution
Answer: (C) Pulmonary vein
The pulmonary vein brings oxygen-rich blood from the lungs to the left atrium. It is an exception because most veins carry deoxygenated blood. The pulmonary artery and the vena cava carry deoxygenated blood. The renal artery carries oxygenated blood to the kidney, not to the heart.
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