Question

Which blood vessel carries oxygenated blood from the lungs to the heart?

• A. Pulmonary artery
• B. Aorta
• C. Pulmonary vein
• D. Vena cava

Hint:

Arteries usually carry oxygenated blood, and veins deoxygenated — except for the pulmonary artery and vein which are reversed.

Answer 1

The Correct Option is C

To determine which blood vessel carries oxygenated blood from the lungs to the heart, we must understand the role of each of the given blood vessels:

• Pulmonary artery: This blood vessel carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation.
• Aorta: The largest artery in the body that carries oxygenated blood from the left ventricle of the heart to the rest of the body. It does not carry blood from the lungs to the heart.
• Pulmonary vein: This vessel carries oxygenated blood from the lungs back to the left atrium of the heart. It is the only vein that carries oxygenated blood in the body.
• Vena cava: Comprised of the superior and inferior vena cava, these veins carry deoxygenated blood from the body back to the right atrium of the heart.

From the above information, the only vessel responsible for carrying oxygenated blood from the lungs to the heart is the pulmonary vein.