Across
- 2. this system is the first line of defense
- 4. part of the nervous system
- 7. keeps the body in a regulated state
- 8. this organ is part of the Reproductive system
- 10. This body system sends hormones throughout the body
- 11. a large organ that protects you from infections
- 13. carry oxygen to the lungs as well as carbon dioxide
- 14. basic building blocks of living things
- 16. this system contains sexual organs
- 20. transports nutrients and oxygen throughout the body
Down
- 1. breaks down food and processes out of the body
- 3. provides function and movement to the body
- 5. gives off chemical signals to the brain and body
- 6. the heart and blood vessels make up this system
- 9. The main parts of this system are the mouth and lungs
- 12. function is to protect you from disease and illnesses
- 15. the main function of the digestive system is to ______ food
- 17. removes waste products from cellular metabolism
- 18. gives support and structure to the body
- 19. this body system is part of a defense system that produces antibodies