Question

Tidal volume and expiratory reserve volume of an athlete is 500 ml and 1000 ml respectively. What will be his expiratory capacity if the residual volume is 1200 ml? 1) 1700 ml 2) 2200 ml 3) 2700 ml 4) 1500 ml

Answer 1

Expiratory capacity is the sum of tidal volume and expiratory reserve volume. So, the expiratory capacity is 1500ml.