1st Year Crossword

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Across
  1. 4. Stores substance made in the liver
  2. 6. Ventricle which pumps blood to the legs
  3. 10. To breathe in our muscles _____________
  4. 11. Artery which takes blood to the heart from the lungs
  5. 12. Can be used to test for carbon dioxide
  6. 15. Atrium which pumps blood to the left ventricle
  7. 19. Process by which energy is released from food
  8. 21. Substance produced in the liver
  9. 23. Pointed teeth after your incisors
  10. 24. Pipe which brings air down to the lungs
  11. 26. A type of digestion
  12. 27. Process by which gases move between respiratory and circulatory systems
  13. 30. Pipe which brings food down to the stomach
  14. 31. How the stomach physically digests food
  15. 33. Blood cells which clot blood
  16. 34. Chemical substance that alters the rate of a reaction
  17. 35. Colour of the blood cell which carries oxygen
  18. 37. Where air is taken in
  19. 38. System which deals with breathing
Down
  1. 1. Process by which food is broken down into smaller particles
  2. 2. Vessels one cell thick
  3. 3. Colour of blood cells which fight infection
  4. 5. An example of an enzyme
  5. 7. Air sacs where gas exchange takes place
  6. 8. Where food is taken in
  7. 9. Type of muscle to do with the heart
  8. 12. Name of the inner structure of a blood vessel
  9. 13. System which deals with blood
  10. 14. Ventricle which pumps blood to the lungs
  11. 16. One method of fighting infection
  12. 17. Protect the lungs
  13. 18. Muscle underneath the lungs
  14. 20. Blood vessel under the highest pressure
  15. 22. Name of vessel which pumps blood into the heart
  16. 25. Name of a blood vessel with a thick muscular wall
  17. 28. Can be used to test for starch
  18. 29. Pigment found in red blood cells which gives them their red colour
  19. 32. Vessels that have vales
  20. 33. Measurement of how acidic or basic something is
  21. 36. Activity which causes both our breathing and heart rates to increase