Intrapulmonary pressure >Inspiratory phase: <l atm > Expiratory phase: >1 atm >At the end of inspiration or expiration:=l atm Intrapleural pressure More negative as inspiratory processing cle Concept changes during respiratory cy Less negative as expiratory processing >Measurement Expression Direct Indirect measurement 775 mmHg or-5 mmHg Always < I atm under static conditionIntrapulmonary pressure ➢Inspiratory phase: <1 atm ➢Expiratory phase: >1 atm ➢At the end of inspiration or expiration: =1 atm Intrapleural pressure ➢Concept & Changes during respiratory cycle More negative as inspiratory processing Less negative as expiratory processing ➢Measurement & Expression Direct & Indirect measurement 775 mmHg or −5 mmHg Always < 1 atm under static condition