Estimation of tissue elasticity of the lung

Abstract

Theoretical work-volume curves for liquid-filled lungs were constructed based on an assumed geometric form and deformation of the terminal air spaces and on the characteristics of single fibers of elastic tissue. These curves were compared with those measured in rats and with one taken from the journal literature in the case of a human lung. The form of the measured curves fitted the theoretical curves. The assumptions necessary were considered in detail. In both species more elastic tissue has been found present in the lung than would be expected theoretically. The action of additional restraining elements was thought necessary at high volume. pulmonary pressure-volume curves; pulmonary work-volume curves; lung volume and elastic tissue mass; pulmonary elastic tissue; tissue elasticity; pulmonary mechanics Submitted on April 22, 1963