Question:
- pressure of air in the lungs is greater than outside - high pressure inside is achieved by decreasing the volume of lungs - diaphragm and intercostal muscles relax - diaphragm moves up - rib cage move down and in - lung volume decreases and air is greater inside, air flows out until pressure is equal - passive process
Author: Abbey ManAnswer:
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Abbey Man![Abbey Man](https://lh4.googleusercontent.com/-KqJzJa-lwKk/AAAAAAAAAAI/AAAAAAAAAAA/AMZuucl0mFj_bOqMZvwiwPDbd8jjrQnoug/photo.jpg)