Question

distinguish between IRV and ERV

Answer 1

please provide more details

Answer 2

 Inspiratory reserve volume (IRV)

1. It is the maximum volume of air that can be inhaled after a normal inspiration. 
2. It is about 2500 – 3500 mL in the human lungs.

Expiratory reserve volume (ERV)  

1. It is the maximum volume of air that can be exhaled after a normal expiration.
2. It is about 1000 – 1100 mL in the human lungs.