1. Subdivision of conducting airways and terminal respiratory units
Subdivision of conducting airways and terminal respiratory units. This schematic illustration demonstrates the subdivisions of both the conducting airways and the respiratory airways. Successive branching produces increasing generations of airways, beginning with the trachea. Note that gas-exchanging segments of the lung are encountered only after extensive branching, with concomitant decrease in airway caliber and increase in total cross-sectional area (see Figures 9–2 and 9–3). (Redrawn, with permission, from Weibel ER. Morphometry of the Human Lung. Springer, 1963.)
Source: Pulmonary Disease, Pathophysiology of Disease: An Introduction to Clinical Medicine, 7e
Citation: Hammer GD, McPhee SJ. Pathophysiology of Disease: An Introduction to Clinical Medicine, 7e; 2013 Available at: Accessed: October 27, 2017
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