Human Body Systems

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Across
  1. 2. Structure that absorbs digested food
  2. 4. intestine There to Reabsorb excess water
  3. 7. Lowest part of the heart
  4. 9. Tube which food goes down
  5. 10. Where both chemical and mechanical digestion take place
  6. 13. Organ that exchanges CO2 with oxygen
  7. 14. Passages that take air to the lungs
  8. 15. Muscle that helps with breathing
Down
  1. 1. Cells grouped together
  2. 3. Cell that is important part in forming scabs
  3. 5. Cell that helps fight diseases
  4. 6. Top part of the heart
  5. 8. Where digestion starts
  6. 11. windpipe
  7. 12. bronchi> alveoli