Volumes Cardio

Question 1

Tidal volume (TV):

Expiratory reserve volume (ERV):

Inspiratory reserve volume (IRV):

Residual volume (RV):

Answer 1

– volume of air inhaled or exhaled in one quiet breath
– males = 500mls; females = 500mls (0.5L)

– the amount of air that can be forcibly exhaled after a normal tidal volume exhalation
– males = 1000mls (1.0L); females = 700mls (0.7L)

– amount of air that can be forcibly inhaled after a normal tidal volume inhalation
– males = 3300mls (3.3L); females = 1900mls (1.9L)

– air remaining in lungs after maximum expiration
– males = 1200mls (1.2L) females = 1100mls (1.1L)

Question 2

Functional residual capacity (FRC)

Vital capacity (VC)

Inspiratory capacity (IC)

Total lung capacity (TLC)

Answer 2

– volume of air remaining in the lungs after a normal tidal expiration

– maximum amount of air that can be expired after a maximum inspiratory effort
– Males = ~4800ml, Females = ~4200ml

– Maximum amount of air that can be inspired after a normal expiration.

– maximum amount of air contained in lungs after a maximum inspiratory effort
– males = 6000mls (6.0L); females = 4200mls (4.2L)