Assertion : If two men expire the same volume of air after normal inspiration, they have the same expiratory…
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.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
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.