As6hnabethlsbaut As6hnabethlsbaut
  • 25-03-2017
  • Health
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How do muscles work in pairs to move the human body?

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mariahcarrie
mariahcarrie mariahcarrie
  • 26-03-2017
The Skeletal muscles only pull in one direction.Muscles in a pair contracts to bend joints.They move in opposite directions so the joints can straighten out again
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