Question

In which of the following point pulmonary artery is different from the pulmonary vein?

• A. It has lumen is broad.
• B. It has thick wall.
• C. It has valves.
• D. It does not possess endothelium.

Answer 1

The correct option is B It has thick wall.

The pulmonary artery carries deoxygenated blood from the heart to the lungs while the pulmonary vein carries oxygenated blood from the lungs to the heart. A pulmonary artery has a smaller lumen and thicker walls as compared to a pulmonary vein.

So, the correct answer is 'It has a thick wall.'