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2. air

  • contract
  • rushes in
  • rushes in
  • contracts and flattens

3. diaphragm

  • contracts and flattens
  • contract
  • rushes in
  • up and out

4. ribs

  • decrease
  • move up and out
  • contact and flatten
  • increases in size

5. thoracic activity

  • rushes in
  • increases in size
  • decreases
  • in and out
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