Question

What is the structural difference between arteries and veins?

Answer 1

Answer:

Arteries have narrow lumen whereas veins have broad lumen.

Arteries do not have valves whereas veins have valves to prevent the back flow of blood.

Walls of the arteries are elastic whereas walls of the veins are non elastic.

Arteries have thick and more muscular walls whereas veins have thin and less muscular walls.

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Answer 2

Answer:

I can give you 2 differences

1. Arteries have thick, elastic, muscular walls while veins have thin walls with few elastic fibers.

2. Veins have one-way valves while arteries do not have any valves.