Question

Which vessels have thick walls and narrow lumen

Answer 1

Explanation:

veins withstand a much lower pressure from the blood that flows through them. Their walls are considerably thinner and their lumens are correspondingly larger in diameter, allowing more blood to flow with less vessel resistance

Answer 2

One of the obvious differences is that they have a much wider lumen and thinner walls. The other main difference is that veins have valves inside them, while arteries do not.