1.1.5 Arteries, veins and capillaries Flashcards
1
Q
What is the outer coat made of?
A
Collagen
2
Q
What is the muscle and elastic layers’ function?
A
Allows them to constrict and dilate and stretch and recoil
3
Q
What is the endothelium?
A
Smooth layer, reduces friction
4
Q
What are the differences between arteries and veins?
A
Arteries have a narrow lumen, thicker walls, more collagen, and no valves
Veins have a wider lumen, thinner walls, less collagen, and valves
5
Q
How thick are capillaries?
A
1 cell thick
