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BIOLOGY
During inspiration...

During inspiration

A

Diaphragm and external muscles relax

B

Diaphragm and internal intercostal muscles relax

C

Diaphragm and external intercostal muscles contract

D

Diaphragm and internal intercostal muscles contract

Text Solution

Verified by Experts

The correct Answer is:
C
Diaphragm and external intercostal muscles contract
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