Stella7

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Across
  1. 2. organs that break down food
  2. 3. tiny air spaces in lungs
  3. 7. uses 02 to break apart glucose
  4. 11. muscles push food through the digestive system
  5. 12. space in chest
  6. 13. the change of food into new substances
  7. 15. tubes that connect the bladder and kidneys
  8. 16. cleans toxins from blood,makes bile
  9. 17. what the body needs but doesn't make
Down
  1. 1. brings in o2 removes c02
  2. 4. liquid waste
  3. 5. stores the bile
  4. 6. organ that filters blood
  5. 8. small part of kidney that filters blood
  6. 9. exit tube
  7. 10. food broken into smaller pieces
  8. 14. regulates liquid in the blood