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respiratory physio

TermDefinition
eupnea exhale relax diaphragm & external intercostal muscle, passive process
hypernea forced breathing
hypernea inhale contract diaphragm & external intercostal + scalenes, sternocleidomastoid, & pectoralis major; active process
hypernea exhale relax diaphragm & external intercostal + contract internal intercostal, external abdominal obliques, & rectus abdominis; active process
Ppleural inside pleural cavity; slightly neg. to Palv- why lungs stay inflated
respiratory volumes various measurements of air associated w/ lungs
tidal volume amount of in & out air in eupnea- vital capacity
inspiratory reserve volume max inhale volume w/ hypernea- vital lung capacity
expiratory reserve volume max exhale w hypernea- vital capacity
residual volume air that is present, but doesn't move in or out- part of total lung capacity
anatomical space air that doesn't do gas exchange
respiration cycle 1 breath in & 1 breath out
pulmonary ventilation inhale & exhale. ^volume, decrease pressure; decrease volume ^pressure
Patm outside the body, constant in a given respiratory cycle
Palv/ Ppul inside the lungs, changes during respiratory cycle
Ppleural inside pleural cavity; also changes, but relative to Palv is always slightly less than alveoli
eupnea quiet breathing
eupnea inhale contract diapragm & external intercostal muscle; active process
Created by: huntybaby
 

 



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