Answer:
RV is the residual volume
TC is the total capacity
EA is the volume of exhaled air
Hence, when capacity decreases residual volume increase
Step-by-step explanation:
Maximum air inhaled or exhaled per stroke of breathing is defined as the maximum capacity of a lung. Residual volume is the air remaining in the lungs after the expiration
When the capacity of lungs reduces, the volume of air exhaled by the lungs reduces. Hence, the volume of residual air increases.