Human Body Systems

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Across
  1. 2. Provides defense against pathogens.
  2. 3. Allows for movement.
  3. 5. Excreted waste materials.
  4. 6. Coordinates involuntary and voluntary responses.
  5. 8. Provides ability to reproduce.
  6. 11. Protects from outside environment, includes de skin.
Down
  1. 1. Involves the breakdown of food.
  2. 4. Important for gas exchange. Involves the lungs.
  3. 7. Hormone production.
  4. 9. Transport of gases and nutrients.
  5. 10. Provides support to the body.