NPB 113 Lecture Notes - Lecture 22: Vital Capacity, Methamphetamine, Lung Volumes
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" tidal volume : amount of air 901m. Inspiratory reserve volume : amount of air inspired above tv. Expiratory reserve volume : amount of air expired below tv. Not all air removed from alveoli 1 airways. " allows gas exchange to continue to occur after expiration. " lung capacities : add 2 or more lung volumes. Vital capacity = tv t irv t c- rv. Functional residual capacity ( frc ) = erv t rv. Total lung capacity : add all volumes lung mechanics and breathing. " nothing physically joins the chest wall to the lungs. Intra pleural space between lungs and chest wall. During breathing , change paw to allow airflow lung volume changes to pv= n rt pv - Lung volume t which, t paw expiration. " lung volume changes due to changes in trans mural forces 1 pressures. Trans mural forces pressure : force 1 pressure exerted on a wall. P lung wall = paw - pip.