The Circulatory System

Edit Answers
123456789101112131415161718192021
Across
  1. 4. formed in red bone marrow
  2. 6. amount of blood pumped by the left ventricle every minute
  3. 8. red coloured compound in red blood cells
  4. 9. method used to increase red blood cell count to improve athletic performance
  5. 10. calculated using 220 minus your age
  6. 13. the biggest artery in the body
  7. 16. valves that prevent blood from the ventricles to flow back into the atria
  8. 17. carries blood to and from the body's cells
  9. 19. Produced by white blood cells and can fight infections
  10. 20. fluid build up in the lungs
  11. 21. wall separating the left and right sides of the heart
Down
  1. 1. measures the number of times your heart beats each minute
  2. 2. system responsible for transporting substances around the body
  3. 3. returned to the heart through the pulmonary vein
  4. 5. name for white blood cells
  5. 7. name for red blood cells
  6. 11. the speed of the arteries is ______
  7. 12. carries blood back into the heart
  8. 14. Haemoglobin bonds with oxygen to form_______
  9. 15. carries blood away from the heart
  10. 18. pumped from the heart to the lungs through the pulmonary artery