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6. How many chambers are there in the heart?

  • 4
  • 2
  • 6

7. What is used to keep open an artery if it begins to narrow and restrict blood flow?

  • Stent
  • Cage
  • Vent

8. How many separate circulation systems are there in the body and what are they for?

  • 2. One for the lungs and one for the body
  • 2. One for the brain and one for the body
  • 3. One for the brain, one for the lungs and one for the digestive system

9. How does blood flow through the heart?

  • Vein to atrium to ventircle
  • Vein to ventricles to atrium
  • Artery to atrium to ventricle
  • Artery to ventricles to atrium

10. How is oxygen transported around the body?

  • In white blood cells
  • In red blood cells
  • In blood plasma

11. What are platelets?

  • Small fragments of cell
  • Ribosomes
  • Empty cells

12. What do white blood cells do?

  • They cause blood clots
  • They form part of the body’s defence system against microorganisms
  • They carry carbon dioxide around the body

13. What is the name of the blood vessels that carry blood to and from the lungs?

  • Pulmonary Vein and Artery
  • Coronary Vein and Artery
  • Aortic Vein and Artery

14. What does haemoglobin combine with oxygen to form?

  • oxyhaemoglobin
  • oxygen-haemoglobin
  • phagocyte

15. How is carbon dioxide transported from organs to the lungs?

  • In blood plasma
  • In white blood cells
  • In the bronchioles

16. What is the heart?

  • an organ
  • a tissue
  • an organ system

17. What is the name of the main artery carrying blood from the heart to the body?

  • Pulmonary Artery
  • Aorta
  • Hepea

18. What does the circulatory system do?

  • Transport substances around the body
  • Provide enzymes for digestion
  • Produce hormones