Adaptions for animals in transport
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- 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...
- tunica externa
- endothelium
- tunica media
- lumen
3. How thick is the endothelium lining?
- 2 cells thick
- One cell thick
- Half a cell thick
- Four cells thick
4. What is the purpose of smooth muscle in blood vessels?
- Smooth muscle regulates blood flow and maintains blood pressure
- Increases blood flow
5. Why is the endothelium lining smooth?
- Just cause
- So that the blood is kept at a low pressure
- To reduce friction and minimize the resistance of blood flow
- To increase the rate of blood flow
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