explain respiratory volume ?

Respiratory Volumes and Capacities

Respiratory volume

Description

Amount

Tidal Volume (TV)Volume of air inspired or expired during normal respiration

500 mL

Inspiratory reserve volume (IRV)Additional volume of air a person can inspire by forceful inspiration

2500 3000 mL

Expiratory Reserve Volume (ERV)Additional volume of air a person can expire by forceful expiration

1000 1100 mL

Residual Volume (RV)Volume of air remaining in the lungs even after forceful expiration

1100 1200 mL

Inspiratory Capacity (IC)

Total volume of air a person can inspire after normal expiration

3000 3500 mL

Expiratory Capacity (EC)

Total volume of air a person can expire after normal inspiration

1500 1600 mL

Functional Residual Capacity (FRC)Volume of air that remains in the lungs after normal expiration

2200 2300 mL

Vital capacity (VC)Maximum amount of air a person can breathe in/out after a forceful expiration/inspiration

This may include ERV, TV, and IRV.

Total Lung CapacityTotal volume of air accommodated in lungs at the end of forceful inspiration

This may include RV, ERV, TV, and IRV.