Blood Vessels

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  • Created by: issyafd1
  • Created on: 30-04-16 14:15

1. What is the function of valves?

  • Prevent carbon dioxide diffusing into tissues
  • To prevent backflow
  • Ensure all oxygen diffuses from the blood
  • Ensure the blood is flowing very fast
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Other questions in this quiz

2. What do arteriole walls contain?

  • Only smooth muscle
  • More smooth muscle and less elastin than arteries
  • More smooth muscle and more enodthelium than arteries
  • Less smooth msucle and more collagen than arteries

3. What do artery walls contain?

  • Collagen and elastic fibres only
  • Elastic fibres, smooth muscle and collagen
  • Elastic fibres and smooth muscle only
  • Elastic fibres and collagen only

4. What is a property of blood entering the capillaries from the placenta and lungs?

  • Blood contains lots of glucose
  • Blood is flowing very fast
  • Blood is deoxygenated
  • Blood is oxygenated

5. Why do capillaries in the brain have tight junctions?

  • Prevent the drainage of brain fluid
  • To prevent fluid on the brain
  • Ensure that oxygen does not diffuse back into the capillaries
  • To prevent essential minerals diffusing into the capillaries




Tech problems, plz check

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