Capillaries, Arteries and Veins Flashcards
1
Q
Function - ARTERY
A
High pressure - carries oxygenated blood from heart to body.
2
Q
Lumen - ARTERY
A
Narrow to maintain pressure.
3
Q
Smooth Muscle - ARTERY
A
Thick to aid elasticity and maintain pressure.
4
Q
Valves - ARTERY
A
None.
5
Q
Outer Walls - ARTERY
A
Elastic
6
Q
Function - VEINS
A
Lower pressure - carries deoxygenated blood from body to the heart.
7
Q
Lumen - VEINS
A
Wider to assist in flow.
8
Q
Smooth Muscle - VEINS
A
Thinner
9
Q
Valves - VEINS
A
Prevent flow back.
10
Q
Outer Walls - VEINS
A
Elastic
11
Q
Function - CAPILLARY
A
Carries nutrients and gases to tissues.
Removes waste product.
12
Q
Lumen - CAPILLARY
A
None
13
Q
Smooth Muscle - CAPILLARY
A
None
14
Q
Valves - CAPILLARY
A
None
15
Q
Outer Walls - CAPILLARY
A
Single cell thick to allow nutrients and gases to diffuse through.
