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