body systems

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Across
  1. 5. this is sent out of your heart every time it beats
  2. 8. muscles you can flex
  3. 9. outer layer of the cerebrum
  4. 10. where air from the nose and mouth meet
  5. 11. one part of a muscle
  6. 13. bones found in your limbs
  7. 15. a flexor muscle found in your arms
  8. 17. carry blood away from heart
  9. 18. carry blood back to heart
Down
  1. 1. what bones are made of
  2. 2. air that enters here is warmed
  3. 3. recieves blood from heart to make oxygen
  4. 4. these connect your bones
  5. 6. one part of a muscle
  6. 7. contains information about who you are
  7. 12. main relayer of information from the brain
  8. 14. where your air gets carried to your lungs
  9. 15. controls how you think and feel
  10. 16. hairs that protect nasal passage ways
  11. 17. bones fond in the ribs and spine