First slide

Mechanism of Breathing

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?

Moderate

A

2700 mL
B

1500 mL
C

1700 mL
D

2200 mL

Solution

TV $=$ $500 mL$
ERV $=$ $1000 mL$
Expiratory Capacity $=$ $TV + ERV$ $=$ $500 + 1000$ $=$ $1500 mL$
Note: The data of residual volume is not necessary to calculate expiratory capacity; residual volume is not a part of expiratory capacity.

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