lung volumes Flashcards
what is tidal volume?
volume of air breathed in or out per breath
what is inspiratory reserve volume?
volume of air that can be forcibly inspired after a normal breath
what is expiratory reserve volume?
volume of air that can be forcibly expired after a normal breath
what is the equation for minute ventilation?
number of breaths (per min) x tidal volume
why does tidal volume increase during exercise?
more oxygen is required so depth of breathing increases - tidal volume increases becausemore IRV & ERV is being used
what is residual volume?
the amount of air that is left in the lungs after maximal expiration
what is a spirometer?
a device that is used to meausre the volume of air inspired and expired by the lungs
what is minute ventilation?
the volume of air inhaled or exhaled from the lungs per minute
