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14 cards from this deck
Diaphragm & external intercostal muscles
Upwards and outwards
Increases
Air rushes into the lungs
Diaphragm & external intercostals
Internal intercostals
Downwards and inwards
Decreases
Air forced out of the lungs
Pectorals & sternocleidomastoid
Raise the sternum
Lungs expand further
Abdominal muscles
Pull rib cage down quickly
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