Fig. 5

Comparison of the conducting airways between human and mouse. a Organization of the bronchiolar structures in the anatomic ontology with differences enclosed in boxes. b Schematic drawing of the conducting airways in human and mouse. The circles without color indicate similar structural organization and terminology. Those with color indicate differences in structural organization. Differences between human and mouse with respect to the relationships part_of and branching_part_of are highlighted with black and orange, respectively, reflecting differences in size and complexity of the human and mouse lung. c Histologic comparison of the bronchioles in human and mouse lung stained with hematoxylin and eosin; original magnification, 10X; Art, pulmonary artery; TB, terminal bronchiole; RB, respiratory bronchiole; AD, alveolar duct