Across
- 1. These are the building blocks of the human body
- 2. This system includes voluntary and involuntary muscles)
- 7. This is the primary organ of the circulatory system
- 8. This system helps protect the body from infections
- 12. The largest organ in the body
- 13. This system is responsible for hearing
- 14. This system includes glands that produce sweat
- 15. These organs produce hormones
- 16. The only organ that can regenerate itself
- 17. This system includes the brain, spinal cord, and nerves
- 18. These are the main organs of the respiratory system
- 19. This system includes the mouth, stomach, and intestines
- 20. This system helps regulate body temperature and eliminate waste
- 21. These organs filter waste from the blood
- 22. This system controls voluntary and involuntary movements
Down
- 1. This system includes the heart, blood vessels, and blood
- 3. These structures carry oxygenated blood away from the heart
- 4. These organs produce red and white blood cells
- 5. This system is responsible for providing oxygen to the body
- 6. These structures allow bones to move at joints
- 8. This organs break down food into nutrients
- 9. The "control center" of the body
- 10. This system is responsible for producing offspring
- 11. This system helps regulate body temperature and eliminate waste
- 23. This system supports the body and allows movement