Respiratory System

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Intrapulmonary Bronchis

The intrapulmonary bronchis can present simple ciliated columnar epithelium supported on a lamina propria with a lot of elastic fibers. The muscle layer surrounds completely the bronchi.

M: Mucosa (pseudostratified ciliated columnar epithelium with goblet cells)

HC: Hyaline Cartilage

ML: Muscle layer (Reisseissen's muscle)