Adaptions for animals in transport

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  • Created by: Sfranp I
  • Created on: 04-03-16 14:15

1. Why is the endothelium lining smooth?

  • Just cause
  • To reduce friction and minimize the resistance of blood flow
  • To increase the rate of blood flow
  • So that the blood is kept at a low pressure
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Other questions in this quiz

2. What is the purpose of smooth muscle in blood vessels?

  • Smooth muscle regulates blood flow and maintains blood pressure
  • Increases blood flow

3. The innermost layer of a blood vessel is called the...

  • endothelium
  • tunica media
  • tunica externa
  • lumen

4. What do the elastic fibres in arteries allow?

  • Diffusion
  • Stretching- to accomadate changes in blood flow and pressure
  • Structure
  • Elastic fibres reduce friction

5. How thick is the endothelium lining?

  • 2 cells thick
  • Four cells thick
  • One cell thick
  • Half a cell thick

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