Question

How do veins and arteries differ in structure?

Answer 1

Arteries:
1-Thick elastic tissue
2-Valves are absent
3-narrow lumen
4-thick muscle wall
5-blood is at high pressure
6-blood moves in pulses
Veins:
1-Thin elastic tissue
2-thin muscle wall
3-wide lumen
4-blood under low pressure
5-Valves present
6-no pulse