why is inspiratory capacity the sum of TV & IRV?
Dear student,
Inspiratory capacity(IC) which is defined as volume of air that can be inspired after a normal expiration, is given by tidal volume(TV) and inspiratory reserve volume.(IRV).
TV is the amount of air which is normally inhaled by inspiration after completion of a normal inspiration​
IRV is the amount of air which is inhaled by forcible inspiration after completion of a normal inspiration​​.
Therefore, IC includes both TV+ IRV.
Regards.
Inspiratory capacity(IC) which is defined as volume of air that can be inspired after a normal expiration, is given by tidal volume(TV) and inspiratory reserve volume.(IRV).
TV is the amount of air which is normally inhaled by inspiration after completion of a normal inspiration​
IRV is the amount of air which is inhaled by forcible inspiration after completion of a normal inspiration​​.
Therefore, IC includes both TV+ IRV.
Regards.