Multiple choice general knowledge

In Pulmonary vein ,which type of blood is flowing?

  1. pure

  2. impure

  3. partial pure

  4. blood is not flowing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pulmonary veins are unique - they're the only veins that carry oxygenated (pure) blood from the lungs to the left atrium of the heart. All other veins carry deoxygenated blood. This exceptional nature is because they're returning blood from where oxygenation occurred.

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