mechanical process that depend on volume changes in thoracic cavity:
_________ _________ (breathing) consists of two phases:
pulmonary ventilation
inspiration and expiration
inspiration
gases flow into the lungs
expiration
gas passes out of the lungs
greater volume in lungs causes ________ of pressure in lungs
decrease
Tidal Volume (TV)
amount of air inhaled or exhaled with each breath under resting conditions (normal)
Inspiratory reserve volume (IRV)
amount of air that can be forcefully inhaled
Expiratory reserve volume (ERV)
amount of air that can be forcefully exhaled after a normal tidal volume exhalation (breathing out forcefully)
Vital Capacity (VC)
maximum amount of air that can be exhaled after a maximal inspiration
Residual Volume
amount of air that can never be exhaled from the lungs