Muscular/Nervous System Crossword Puzzle

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Across
  1. 6. Common in runners and aggressive walkers
  2. 8. Muscle that is attached to your skeleton and is voluntary
  3. 9. Muscles that are inside your heart
  4. 10. the "feel good" function of the brain
  5. 12. System that includes the brain and spinal cord
  6. 13. "Use it or ______ it"
  7. 14. Small tears to a muscle that have been overworked
  8. 15. Happens when you body releases endorphins which cause you to feel euphoric after an intense workout
  9. 19. Muscle contraction releases heat to keep your body the right temperature
  10. 21. system that deals with action you control
  11. 22. A disease that effect's the brain and causes someone to lose their memory
Down
  1. 1. Largest and most complex part of the nervous system
  2. 2. Muscles always ____ Never push
  3. 3. Muscle Tone
  4. 4. A disease having to do with a person losing their muscles
  5. 5. system that includes the nerves that connect to the body
  6. 7. Fast Muscle contractions to raise body temperature
  7. 11. Example of Skeletal Muscle
  8. 16. System that deals with actions you do not control
  9. 17. A way to help a muscle injury
  10. 18. Muscles that are inside your organs
  11. 20. One function of the muscular system