<prompt> Largest lung volume is defined byVital capacityFunctional residual capacityInspiratory capacityERVIRV  <response>: Ans: a Vital capacity Please go through diagram given below make the facts clear. LUNG VOLUMES INSPIRATORY CAPACITY ICFUNCTIONAL RESIDUAL CAPACITYVITAL CAPACITYTOTAL LUNG CAPACITY TV IRV ERV RV ERV TV IRV ERV TV IRV RV. Male LFemale LResidual volumeExpiratory reserve volume1.211.10.7Tidal volume0.50.5Inspiratory reserve volumeTotal lung capacity3.361.94.2 Respiratory minute volume 6 LI minAlveolar ventilation 4.2L minMaximum voluntary ventilation 125-170 LminMax work done in breathing10 kg-mbreathNormal work done in breathing 0.5 kg-m minTimed vital capacity secFEV183 FEV3 97REMEMBERTotal lung capacity is measured by1 helium dilution method2 body plethismographyResidual volume is measured by1 N2 washout method. 