Tube law for the intrapulmonary airway

A semiempirical model of a pressure-area relationship for the bronchial airways is developed. It is described by a single similarity law consistent in form with the nonlinear elastic behavior of biological tissue. The tethering effect of the parenchyma is lumped into the wall properties of the bronc...

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Bibliographic Details
Published inJournal of applied physiology (1985) Vol. 65; no. 1; p. 7
Main Authors Elad, D, Kamm, R D, Shapiro, A H
Format Journal Article
LanguageEnglish
Published United States 01.07.1988
Subjects
Airway Resistance
Algorithms
Animals
Bronchi - physiology
Dogs
Lung Volume Measurements
Models, Biological
Pressure
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Summary:A semiempirical model of a pressure-area relationship for the bronchial airways is developed. It is described by a single similarity law consistent in form with the nonlinear elastic behavior of biological tissue. The tethering effect of the parenchyma is lumped into the wall properties of the bronchi and is included in an effective wall stiffness. The model, which is fitted to the experimental data of Takishima and his associates (J. Appl. Physiol. 38: 875-881, 1975), is lung-volume dependent and is therefore suitable for the analyses of airflow at different lung volumes, especially for modeling of forced expiration.
ISSN:8750-7587
DOI:10.1152/jappl.1988.65.1.7