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3 Cards in this Set

  • Front
  • Back

Action of breathing

Muscles - diaphragm and intercostal mm.




Inspiration - diaphragm flattens and intercostals contract and elevate ribs




Expiration - passive, elastic recoil

Accessory mm of breathing

Inspiration - SCM, scalene, platysma, strap mm of neck




Expiration - abdominals

Signs of inc work of breathing

- Accessory mm.


- Nasal flaring


- Tracheal tug


- Intercostal indrawing


- Bracing