Human Body Systems

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Across
  1. 1. -At bottom of chest
  2. 4. System-Blood
  3. 5. in lungs
  4. 6. of the heart
  5. 8. digestion
  6. 9. System-Oxygen and carbon dioxide
  7. 11. urine
  8. 12. filters
  9. 13. digestion
Down
  1. 1. System-Food
  2. 2. System-Waste
  3. 3. oxygen and carbon dioxide
  4. 7. to lungs
  5. 10. upper part of the heart