As a subject matter expert in cardiovascular physiology, I can provide you with an accurate answer to your question.
The blood vessels that carry oxygen-rich blood from the lungs back to the heart are the
Pulmonary Veins. These veins are unique because they carry oxygenated blood, which is typically a function of arteries. However, in the case of the pulmonary circulation, the pulmonary veins transport blood that has been oxygenated in the lungs back to the left atrium of the heart.
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