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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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By Expert Faculty of Sri Chaitanya
a
A, B, D, E
b
B, C, D
c
A, B, C
d
B, D, E
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detailed solution

Correct option is C

External intercostal muscles relax, diaphragm is arched upwards, intra-pulmonary pressure increases


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