Bronchi and Intrapulmonary Airways Anatomy
B1+2 (apicoposterior), B3 (anterior), B7 (medial basal), B6 (superior, lower lobe), B6 (superior, lower lobe), B2 (posterior), B8 (anterior basal), B9 (lateral basal) B10 (posterior basal), B9 (lateral basal), B10 (posterior basal), B7+8 (anteromedial basal), B1 (apical), B3 (anterior), B4 (lateral), B5 (medial), B4 (superior lingular), B5 (inferior lingular), Bronchioles Bronchi, Cartilages become sparser (mostly at points of branching), Segmental bronchus, Large intrasegmental bronchi (about 5 generations), Small intrasegmental bronchi (about 15 generations) Lobule, Terminal bronchiole.
Nomenclature in common usage for bronchopulmonary segments (Plates 206 and 207) is that of Jackson and Huber, and segmental bronchi are named accordingly. Bronchial subdivisions as far as the 5th or 6th generations also are shown but not labelled. Segmental bronchi (B) are numbered from 1 to 10 in each lung, corresponding to the pulmonary segments. In the left lung, B1 and B2 are combined, as are B7 and B8. Variations of the standard bronchial pattern shown here are common, especially in peripheral airways.