Pulmonary Capacities A Capacity is composed of two or more wolynes Inspiratory capacity(.吸气量) Tidal volume plus inspiratory reserve volume Functional residual capacity(功能残气量,FRC) Expiratory reserve volume plus the residual volume Ⅴ ital capacity(肺活量,VC) Sum of inspiratory reserve volume, tidal volume, and expiratory reserve volume Total lung capacity(肺总量,TLC) Sum of inspiratory and expiratory reserve volumes plus the tidal volume and residual volume7 Pulmonary Capacities A Capacity is composed of two or more volumes • Inspiratory capacity （深吸气量） – Tidal volume plus inspiratory reserve volume • Functional residual capacity （功能残气量, FRC） – Expiratory reserve volume plus the residual volume • Vital capacity （肺活量, VC） – Sum of inspiratory reserve volume, tidal volume, and expiratory reserve volume • Total lung capacity （肺总量, TLC） – Sum of inspiratory and expiratory reserve volumes plus the tidal volume and residual volume