Questions
Select the correct set of events that occur during expiration
A) relaxation of external intercostal muscles
B) diaphragm is arched upwards
C) intra-pulmonary pressure increases
D) ribs and sternum are lifted up
E) pulmonary volume increases
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Correct option is C
External intercostal muscles relax, diaphragm is arched upwards, intra-pulmonary pressure increases
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