AIIMS 201925 May
- Exam
- AIIMS
- Year
- 2019
- Date
- 25 May
- Subject
- Zoology
- Chapter
- Breathing and Exchange of Gases
AIIMS 2019 · 25 May · Zoology · Breathing and Exchange of Gases
Assertion : If two men expire the same volume of air after normal...
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.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- DIf both assertion and reason are false.
Correct answer
C. If assertion is true but reason is false.
Step-by-step solution
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.