True or False: The vestibule is lined with typical respiratory epithelium.

The statement is false because the vestibule, which is the front part of the nasal cavity, is primarily lined with keratinized stratified squamous epithelium instead of typical respiratory epithelium. The typical respiratory epithelium, characterized by ciliated pseudostratified columnar cells with goblet cells, is found further along the respiratory tract, where it plays a crucial role in trapping and moving particles out of the airways.

In the vestibule, the thicker and tougher epithelial layer provides protection against mechanical abrasion and other environmental factors encountered at the entrance of the nasal cavity. Additionally, the presence of hair follicles in the vestibule aids in filtering larger particles from inhaled air. Understanding these distinctions is important for comprehending the various adaptations of the respiratory system in different regions.