All about the heart and blood vessels!

The heart

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1. Why is the endothelium in the artery folded?

  • to allow the artery to expand, helping it to cope with high pressure
  • to give it a large surface area
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Other questions in this quiz

2. Which has a larger lumen - arteries or veins?

  • veins
  • arteries

3. If there is higher pressure behind a valve, is it forced open or shut?

  • open
  • shut

4. Are veins elastic?

  • No
  • yes

5. What does the pulmonary vein do?

  • pump oxygenated blood to the body
  • Pump deoxygenated blood to the lungs
  • brings oxygenated blood back from the lungs
  • bring deoxygenated blood back from the body


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