Review the sequence of events during passive expiration by completing each sente
ID: 3479184 • Letter: R
Question
Review the sequence of events during passive expiration by completing each sentence, and then drag the steps into the proper sequence.
Word Bank:
lungs
chest wall
intrapleural pressure (Pip)
alveolar
Alveolar pressure (Palv).
atmospheric pressure (Patm).
Transpulmonary pressure (Ptp).
Diaphragm
____________ moves back toward its preinspiration value, allowing the lungs to passively recoil toward their preinspiration size.
Air flows out of ____________ .
____________ increases back toward its preinspiration value.
____________ becomes greater than ____________ .
The ____________ and inspiratory intercostal muscles stop contracting, causing the ____________ to recoil inward.
Air in ____________ sacs becomes compressed.
Explanation / Answer
The transpulmonary pressure increases back towards the inspiration value.
The diaphragm and inspiratory intercoastal muscles stop contracting causing the chest wall to recoil inward
The alveolar pressure becomes greater than atmospheric pressure
The intra pleural pressure moves back towards pre inspiration value allowing the lungs to passively recoils towards pre inspiration size
Air in the alveolar sacs become compressed
Air flow out of lungs.
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