P5erferricarockett P5erferricarockett
  • 19-03-2017
  • Biology
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Which muscles, when contracted, would increase the volume of air in the thoracic cavity?

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volpina
volpina volpina
  • 19-03-2017
Contraction of both the diaphragm (the diaphragm flattens) and the external intercostals (pulls the ribs up and out) will increase the volume of the thoracic cavity. This will cause air to move into the lungs (inspiration).
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