Body System crossword

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Across
  1. 3. large flat muscle that helps with breathing
  2. 4. cell fragment that helps form scabs
  3. 9. filters waste
  4. 10. system breaks down food
  5. 12. brings oxygen to the body
  6. 14. system transports oxygen
  7. 15. any of the minute branches into which a bronchus divides.
Down
  1. 1. liquid part of blood
  2. 2. blood cell that fights disease
  3. 5. removes cellular waste
  4. 6. intestine absorbs water
  5. 7. tiny sacs of lung tissue
  6. 8. lower chamber of heart
  7. 11. filter that blood goes through
  8. 13. upper chamber of heart