Crimped or straight? Lung fiber shape influences elasticity

Stiff collagen and stretchy elastin fibers packed together in rows allow the respiratory system to stretch and snap back into shape. Scientists previously thought these fibers govern the mechanics of the airways due to their composition. New research has instead observed that differences in the shape and form of tissue fibers influence respiratory elasticity. These findings will help scientists better understand lung diseases, from chronic diseases like COPD to the lung ailment associated with vaping.