biology crossword puzzle

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Across
  1. 2. located in your upper arm
  2. 3. also called the pecs
  3. 4. transfers electrical impulses
  4. 5. sends signals throughout your body from your brain
  5. 7. works in conjunction with the nervous system
  6. 8. needed to intake oxygen
Down
  1. 1. works in conjunction with the skeletal system
  2. 2. makes signals to send
  3. 6. carries signals throughout your body