alveolar pressure


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Related to alveolar pressure: pleural pressure, Transpulmonary pressure, intrapleural pressure

alveolar pressure (PA)

the pressure in the alveoli of the lungs.

alveolar pressure

Air pressure in the alveoli and bronchial tree. When this pressure is positive, it is higher than atmospheric pressure; when negative, less. Gases flow from higher to lower pressures: when alveolar pressures are higher than atmospheric pressure, respiratory gases tend to be exhaled. When alveolar pressures are less than atmospheric pressures, gas flows into the lungs. Synonym: intrapulmonic pressure
See also: pressure
References in periodicals archive ?
This was done under the assumption that during the transient interruption of airflow, mouth pressure equilibrates with alveolar pressure.
The pressure gradient between alveolar pressure as set by the clinician, (PEEP or CPAP), and actual end expiratory alveolar pressure.
Alveolar pressure P1 just prior to the inspiratory effort may be assumed to be equal to atmospheric pressure PATM.