Human Body Systems

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