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NEET · Biology · STD 11 - 14. Breathing and exchange in gases

Select the correct statement

  1. A Expiration occurs due to external intercostal muscles
  2. B Intrapulmonary pressure is lower than the atmospheric pressure during inspiration.
  3. C Inspiration occurs when atmospheric pressure is less than intrapulmonary pressure.
  4. D Expiration is initiated due to contraction of diaphragm
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Correct Answer

(B) Intrapulmonary pressure is lower than the atmospheric pressure during inspiration.

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