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pulmonary ventilatio

QuestionAnswer
inspiration movement of air into lungs (inhale)
inspiratory muscles diaphragm and external intercostals
expiration (exhale) movement of air out of lungs
active process inspiration
passive process expiration
expiratory muscles abdominal muscles and internal intercostals
spirometer measures amount of air exchanged when breathing
tidal volume we take 500 ml of air with each normal breath
vital capacity largest amount of air we inhale and exhale fully
expiratory reserve volume (ERV) amount of air that can be forcibly exhaled after using all of tidal vol.
inspiratory reserve volume (IRV) amount of air that can be inspired over and above normal respiration
central regulatory centers in medulla (brain) respiratory control centers (inspiratory and expiratory centers)
under resting conditions you have how many breaths per minute 12-18 breaths per minute
cerebral cortex has voluntary but limited control of respiratory activity
chemoreceptors respond to changes in co2, o2, and blood acid levels: located in carotid and aortic bodies
pulmonary stretch reflexes respond to stretch in lungs
Created by: b.marshall
 

 



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