The experiments in the last decade have given rise to the structural model of pulmonary physiology that replaces the concept of random embryo formation of the pulmonary vessels and bronchi by a fractal model mainly characterized by the repetition of a baseline structure wherein the vascular and bronchial anatomy follow a constant mathematical ratio.An asymmetric division of the airway is initially observed from the source bronchi; left bronchus/right bronchus = 0.8 and remains unchanged until the last divisions; this pattern repeats itself in the blood vessels.
Los experimentos de la última década han dado origen al modelo estructural de la fisiología pulmonar que sustituye el concepto de formación embriológica aleatoria de los vasos y bronquios pulmonares por un modelo fractal, cuya característica principal es la repetición de una estructura básica en la que la anatomía vascular y la bronquial obedecen a una relación matemática constante.