Respiratory Volumes/Capacities

Question 1

Tidal volume

Answer 1

avg volume of air exchanged in a cycle of passive breathing; represents 10% of a person’s vital capacity

Question 2

Inspiratory reserve volume

Answer 2

the maximal volume of air that can be inspired above the level of tidal inspiration

Question 3

expiratory reserve volume

Answer 3

the max volume of air that can be expired below relaxation volume

Question 4

residual volume

Answer 4

the volume of air that remains in the lungs after a maximum exhalation; people use less of their total lung capacity during breathing as aging occurs.

Question 5

Vital Capacity

Answer 5

volume of air exchanged between a maximum inspiration and a max expiration (IRV+TV+ERV)

Question 6

Functional residual capacity/resting volume

Answer 6

volume of air in the lungs at the end of the expiratory phase of tidal breathing (ERV + RV)

Question 7

Inspiratory capacity

Answer 7

max volume of air that can be inspired (TV+IRV)

Question 8

Total lung capacity

Answer 8

IRV+TV+ERV+RV