Body Systems

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Across
  1. 3. The _____ system is a complex network of neurons that sends regulatory messages throughout body
  2. 6. Part of the body breaks down food by chemical reactions
  3. 7. The largest organ of the body covering the body's exterior.
  4. 9. This organ is part of the digestive system which makes insulin.
  5. 12. Exchange carbon dioxide & oxygen
  6. 13. Units the makes up nerves
  7. 14. The ______ system transports oxygen and nutrients throughout the body
  8. 15. Destroys pathogens that enters body
Down
  1. 1. responsible for the excretion of gases.
  2. 2. The ____ system is responsible for movement
  3. 4. The _____ is a part of the central nervous system. It is a long pipe-like structure
  4. 5. Part of the excretory system that produces sweat in order to remove waste.
  5. 8. A complex network of glands that releases hormones
  6. 10. Provides structural support
  7. 11. the mass of nerve tissue located at the head.