Lung Volumes & Capacities

Question 1

Volume of one breath (~500mL)
~70% reaches the Respiratory Zone. The rest remains in the Conducting Zone

Answer 1

Tidal Volume

Question 2

Air that remains in Conducting Zone. Doesn’t contribute to gas exchange.

Answer 2

Anatomic Dead Space

Question 3

Volume of air per minute that actually reaches the respiratory zone.

Answer 3

Alveolar Ventilation Rate

Question 4

The air within your lungs when you take a deep breath.
(males ~3,100 / females ~1,900 mL)

Answer 4

Inspiratory Reserve Volume

Question 5

The air exhaled with as much force as you can.
(males ~1,200 / females ~700 mL)

Answer 5

Expiratory Reserve Volume

Question 6

The amount of air remaining in lungs after a maximum exhalation.
(males ~1,200 / females ~1,100 mL)

Answer 6

Residual Volume

Question 7

The amount of air your lungs can actually hold.
(Tidal volume + Inspiratory Reserve volume)

Answer 7

Inspiratory Capacity

Question 8

(Residual volume + Expiratory Reserve volume)

Answer 8

Functional Residual Capacity

Question 9

(Inspiratory Reserve volume + Tidal volume + Expiratory Reserve volume)

Answer 9

Vital Capacity

Question 10

(Vital capacity + Residual volume)

Answer 10

Total Lung Capacity