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tidal volume (TV)
amount of air inhaled and exhaled in one respiratory cycle under normal resting conditions
inspiratory reserve volume (IRV)
amount of air that can be forcefully inhaled after a normal TV inhalation
expiratory reserve volume (ERV)
amount of air that can be forcefully exhaled after a normal TV exhalation
respiratory rate (RR)
amount of normal respiratory cycles (inhalation and exhalation) that occur in one minute (60 seconds), typically 12-20 reps/min
minute respiratory volume (MRV)
amount of air inhaled in one minute under normal resting comnditions, typically 6000-10000 ml/min
maximum voluntary ventilation (MVV)
maximum breathing capacity (MBC)
the amximum amount of air inhaled in one minute during physical activity, as high as 125000-170000 ml/min
forced vital capacity (FVC)
amount of air exhaled when a deep breath is taken then forcefully exhaled as much as possible (usually released in a period of 6-7 seconds)
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