Other questions in this quiz

2. Which type of blood enters from the left atrium?

  • Oxygenated
  • De-oxygenated

3. What do valves do?

  • Let the blood flow in and out both ways
  • Stop blood entering the heart
  • Prevent the blood from flowing backwards
  • Open and close

4. What does the septum do?

  • Stop blood from entering the heart
  • Separates the two sides of the heart
  • Make the walls of the heart thicker
  • Make the heart pump

5. Which blood vessel has valves?

  • Veins
  • Arteries
  • Capillaries
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