Multiple choice

Pulmonary artery is the only artery which carries _________ blood to the lungs.

  1. pure

  2. impure

  3. mixed

  4. thick
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pulmonary arteries are unique: they are the only arteries that carry deoxygenated blood. All other arteries carry oxygenated blood away from the heart to body tissues. The pulmonary artery carries blood from the right ventricle to the lungs, where carbon dioxide is released and oxygen is absorbed before blood returns via pulmonary veins.

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