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Modeling the effect of axial bronchial tension on expiratory flow.

作者信息

Wilson T A

出版信息

J Appl Physiol Respir Environ Exerc Physiol. 1978 Nov;45(5):659-65. doi: 10.1152/jappl.1978.45.5.659.

DOI:10.1152/jappl.1978.45.5.659
PMID:730563
Abstract

Previous modeling of the expiratory flow-limiting mechanism is extended by including axial tension in the airway walls as one of the forces that affect airway mechanics. The analysis supports the Dawson-Elliott explanation of the plateaus in isovolume pressure-flow (IVPF) curves and shows that axial tension has the effect of increasing maximum flow and introducing a negative-effort-dependent region. Solutions for boundary conditions representing a cannula in the airways are qualitatively different with flow approaching zero as the pressure drop across the system becomes large.

摘要

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