Which statement best compares the aorta and the pulmonary vein?

The aorta carries oxygen-rich blood from the left ventricle to the body. Pulmonary veins carry oxygen-rich blood from the lungs to the left atrium. Therefore, both are involved in transporting oxygenated blood. The aorta and pulmonary veins are blood vessels; they do not separate the atria or control blood flow like valves do.

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