anatomy puzzle homework.

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Across
  1. 1. brings oxygen to all body parts
  2. 3. these, originally white, things you bite food with
  3. 5. the bottom part of your foot
  4. 10. small pouch,on your colon,that may rupture
  5. 11. the biggest internal organ
  6. 13. humans have over 200 of these
  7. 16. if you fall head first,it might get broken
  8. 18. pee travels through this out of your body
Down
  1. 2. food goes down through this into you stomach
  2. 4. pumps blood
  3. 6. essential organ for breathing
  4. 7. popular BBQ food
  5. 8. only finger that has 2 phalanges
  6. 9. often gets broken during cpr
  7. 12. is the largest bone in your body
  8. 14. holds urine
  9. 15. air flows through this into your lungs
  10. 17. organ that people have two, but can live with one
  11. 19. second longest bone in your body