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  • 20-06-2016
  • Biology
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how does the movement of the diaphragm cause the air to go in and out of lungs

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HermioneWeasly
HermioneWeasly HermioneWeasly
  • 20-06-2016
It creates a vacuum that causes the lungs to fill the open cavity and then when it is closed off it returns to its normal shape
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