Year: 1959
Type: article
Abstract: It is often desirable in the study of pulmonary function to know the frictional or resistive forces associated with movement of the lungs and flow of gas in the airways. The magnitude and sign of these forces, expressed as resistive pressure differences, change with the rate and direction of volume displacement, expressed as flow. The ratio of resistive pressure difference to flow is termed pulmonary resistance and includes the "viscous resistance " of the lung tissue and the "viscous and turbulent resistance " of the airways. It does not include elastic and inertial effects of the lungs and their contained air, nor does it in-clude mechanical effects of the chest wall, dia-phragm and functionally related structures in-
DOI: 10.1172/jci103901
Language: English
Subfield: Pulmonary and Respiratory Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W2017266925