Veins Flashcards
0
Q
Walls?
A
Thin
1
Q
Lumen?
A
Wide
2
Q
Less…(3)
A
- collagen
- elastic fibres
- smooth muscle
3
Q
What do veins have that arteries do not? Function?
A
Valves; to prevent the back flow of blood
4
Q
Veins have less elastic fibres and smooth muscle because….
A
…the blood is under low pressure so does not need to stretch and recoil as much.
5
Q
Veins have a larger lumen to…
A
…maintain high blood pressure.
