Body system vocabulary

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Across
  1. 1. - Tiny air sacs in the lungs where gas exchange occurs
  2. 3. Muscle - The type of muscle that makes up the heart
  3. 6. - Balance the body maintains to stay healthy
  4. 8. - Large muscle below the lungs that controls breathing
  5. 10. Nervous System - Nerves branching from brain and spinal cord
  6. 11. System - System that protects the body from disease
  7. 14. System - System that brings oxygen into the body
  8. 15. - Chemical messengers in the bloodstream
  9. 16. Vessels - Tubes that carry blood throughout your body
  10. 18. System - System that filters pathogens and drains fluid
  11. 21. System - A group of organs working together to perform a function
  12. 22. System - System of glands that produce hormones
  13. 23. Muscle - Muscle attached to bones
Down
  1. 2. - Structure made of tissues with a specific function
  2. 4. System - System that breaks down food into nutrients
  3. 5. Muscle - Muscle in organs that works automatically
  4. 7. System - System made of bones
  5. 9. System - System that removes waste from blood
  6. 12. System - System that allows movement and produces heat
  7. 13. System - System that controls body activities through signals
  8. 14. System - System that produces reproductive cells
  9. 17. - Organs that release substances like hormones
  10. 19. System - System that transports oxygen and nutrients through blood
  11. 20. System - Skin, hair, and nails that protect the body