<prompt> Normal vital capacity of lungs is-500ml1200ml3000 ml4700 ml  <response>: Ans. is d i.e., 4700 ml Respiratory Volumes and Capacities for an Average Young Adult Male Measurement Typical value Definition Respiratory volumes 1. Tidal volume TV 500 ml Amount of air inhaled or exhaled in one breath during relaxed, quiet breathing 2. Inspiratory reserve volume IRV 3000 ml Amount of air in excess of tidal inspiration that can be inhaled with maximum effort 3. Expiratory reserve volume ERV 1200 ml Amount of air in excess of tidal expiration that can be exhaled with maximum effort 4. Residual volume RV 1200 ml Amount of air remaining in the lungs after maximum expiration, keeps alveoli inflated between breaths and mixes with fresh air on next inspiration Respiratory Capacities 5. Vital capacity VC 4700 ml Amount of air that can be exhaled with maximum effort after maximum inspiration ERVTVIRV; used to assess strength of thoracic muscles as well as pulmonary function 6. Inspiratory capacity IC 3500 ml Maximum amount of air that can be inhaled after a normal tidal expiration TV IRV 7. Functional residual capacity FRC 2400 ml Amount of air remaining in the lungs after a normal tidal expiration RV ERV 8. Total lung capacity TLC 5900 ml Maximum amount of air the lungs can contain RV VC 