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2. pressure

  • decreases
  • rushes in
  • increases
  • up and out

3. diaphragm

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

4. ribs

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

5. external intercostal muscles

  • contract
  • contracts in size
  • decreases
  • increases in size
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