Select the correct statement. - Vidyadip

MCQ

Select the correct statement.

A
Expiration occurs due to contraction of external intercostal muscles.
✓
Intrapulmonary pressure is lower than the atmospheric pressure during inspiration.
C
Inspiration occurs when atmospheric pressure is less than intrapulmonary pressure.
D
Expiration is initiated due to contraction of diaphragm.

✓

Answer

Correct option: B.

Intrapulmonary pressure is lower than the atmospheric pressure during inspiration.

B

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