Body Systems

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Across
  1. 2. True or False? Your muscles cannot push (4)
  2. 4. The Throat (7)
  3. 5. The trachea branches off into two _________ (7)
  4. 7. The bone in the human body which is broken most often (10)
  5. 11. A _________ joins bone to bone (8)
  6. 15. Muscles that help to raise and lower the ribs (11,7)
  7. 17. A _______ joins muscles to bones (6)
  8. 19. A ________ is where two bones meet (5)
  9. 20. The smallest muscle is found in the _____ (3)
  10. 23. When we breathe in (10)
  11. 26. A forearm bone (4)
  12. 27. The hardest working muscle (3)
  13. 28. What affects the blood pressure? (8)
  14. 30. The ________ system takes up nearly half of the weight of the body (8)
  15. 31. The Trachea (8)
  16. 33. The _______ bone is the only bone in the human body that is not connected to another bone (5)
  17. 34. The substance inside a bone that makes blood cells (6)
  18. 35. How many Chambers make up the human heart? (8)
  19. 36. It takes 17 muscles to_____ (5)
Down
  1. 1. What is the heart made out of? (7)
  2. 3. Keeps food from entering the trachea (10)
  3. 6. The bone in the centre of your chest (7)
  4. 8. When we breathe out (10)
  5. 9. One of the lower leg bones (5)
  6. 10. The voice box (6)
  7. 12. What protein do red blood cells contain? (11)
  8. 13. What affects the Heart Rate? (5,8)
  9. 14. What helps us to move or bones? (7)
  10. 16. What is the study of the heart called? (10)
  11. 18. Which organ pumps blood around the body? (5)
  12. 21. The strongest muscle is your _______ (6)
  13. 22. The main organs of the Respiratory System (5)
  14. 24. Which kind of blood vessel’s blood is moved by the heart pumping? (8)
  15. 25. Small air sacs in the lungs (7)
  16. 29. What is the name of the muscle that the heart us made of? (7)
  17. 32. The heart ______ blood (5)
  18. 35. The largest bone in a human’s body (5)