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Question: Answered & Verified by Expert
Assertion : If two men expire the same volume of air after normal inspiration, they have the same expiratory capacity.
Reason : Expiratory capacity includes tidal volume and inspiratory reserve volume.
BiologyBreathing and Exchange of GasesAIIMSAIIMS 2019 (25 May)
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion.
  • B If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C If assertion is true but reason is false.
  • D If both assertion and reason are false.
Solution:
2033 Upvotes Verified Answer
The correct answer is: If assertion is true but reason is false.
Expiratory capacity (EC) is the total volume of air a person can expire after a normal inspiration. This includes tidal volume and expiratory reserve volume (TV + ERV). Thus, if two men expire the same volume of air after normal inspiration, they have the same expiratory capacity.

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