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Bronchiole
The pseudostratified columnar epithelium of the larger bronchioles decreases in height as bronchioles decrease in diameter. This bronchiole is lined by a simple columnar epithelium with cilia and goblet cells. 1500x

Simple columnar epithelium
The pseudostratified columnar epithelium of the larger bronchioles decreases in height as bronchioles decrease in diameter. This bronchiole is lined by a simple columnar epithelium with cilia and goblet cells. 1500x

- Goblet cell
The pseudostratified columnar epithelium of the larger bronchioles decreases in height as bronchioles decrease in diameter. This bronchiole is lined by a simple columnar epithelium with cilia and goblet cells. 1500x

- Basement membrane
The pseudostratified columnar epithelium of the larger bronchioles decreases in height as bronchioles decrease in diameter. This bronchiole is lined by a simple columnar epithelium with cilia and goblet cells. 1500x

Lamina propria
The pseudostratified columnar epithelium of the larger bronchioles decreases in height as bronchioles decrease in diameter. This bronchiole is lined by a simple columnar epithelium with cilia and goblet cells. 1500x

- Elastic fibers
The pseudostratified columnar epithelium of the larger bronchioles decreases in height as bronchioles decrease in diameter. This bronchiole is lined by a simple columnar epithelium with cilia and goblet cells. 1500x

- Smooth muscle
The pseudostratified columnar epithelium of the larger bronchioles decreases in height as bronchioles decrease in diameter. This bronchiole is lined by a simple columnar epithelium with cilia and goblet cells. 1500x