Intercostal nerves

Typical intercostal nerves -Supply only the intercostal space

  1. 1st and 2nd -Atypical
  2. 3,4,5,6-Typical intercostal nerves
  3. Lower 6 intercostal nerves supply abdomen also- so they are atypical

Movements in thorax

  1. Bucket handle movement- Change in transverse diameter
  2. Pump handle movement of sternum- Change in AP diameter
  3. Piston movement of diaphragm-Vertical diameter

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