Adaptions for animals in transport
- Created by: Sfranp I
- Created on: 04-03-16 14:15
Other questions in this quiz
2. The innermost layer of a blood vessel is called the...
- lumen
- tunica media
- endothelium
- tunica externa
3. What does the tunica media contain?
- Elastic fibres and valves
- Smooth muscle and collagen fibres
- Collagen fibres and elastic fibres
- Elastic fibres and smooth muscle
- Collagen fibres and valves
4. What is the middle layer of a blood vessel called?
- endothelium
- tunica media
- lumen
- tunica externa
5. What is the purpose of smooth muscle in blood vessels?
- Smooth muscle regulates blood flow and maintains blood pressure
- Increases blood flow
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