Theoretical Considerations of the Bronchial Pressure-Flow-Volume Relationships with Particular Reference to the Maximum Expiratory Flow Volume Curve

Abstract

It is generally accepted that abnormalities of air flow mechanics associated with pulmonary diseases such as chronic pulmonary emphysema reside in the airways and lung parenchyma below the larynx. It was the purpose of this paper to explore the theoretical and experimental aspects of flow through a collapsible tube such as a bronchial segment and relate the inferences of these theoretical considerations to the pressure-flow-volume relationships found in normal and diseased states.