Body system vocabulary

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Across
  1. 1. – Tiny air sacs in the lungs where gas exchange happens
  2. 3. Muscle – Heart muscle that beats automatically
  3. 6. – Balance the body keeps to stay healthy
  4. 8. – Muscle under the lungs that helps breathing
  5. 10. Nervous System – Nerves outside the brain and spinal cord
  6. 11. System – System that fights infections and disease
  7. 14. System – System that helps with breathing
  8. 15. – Chemical messengers in the bloodstream
  9. 16. Vessels – Tubes that carry blood through the body
  10. 18. System – System that filters fluid and fights germs
  11. 21. System – Group of organs working together
  12. 22. System – System of glands that make hormones
  13. 23. Muscle – Muscle attached to bones
Down
  1. 2. – Body structure that performs a specific job
  2. 4. System – System that breaks down food
  3. 5. Muscle – Muscle found in internal organs
  4. 7. System – System made of bones that supports the body
  5. 9. System – System that removes liquid waste from the body
  6. 12. System – System that helps the body move
  7. 13. System – System that controls body activities
  8. 14. System – System that allows reproduction
  9. 17. – Organs that release hormones or other substances
  10. 19. System – System that moves blood through the body
  11. 20. System – Skin, hair, and nails that protect the body