The Gun Show

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Across
  1. 4. organ system made up of 600 muscles
  2. 5. determine which twitch muscles you have
  3. 6. muscles best for long endurance exercise
Down
  1. 1. muscles best for short quick energy
  2. 2. involuntary muscles that help keep basic functions
  3. 3. muscles found only in the heart
  4. 6. muscles also called voluntary muscles used for movement