Final answer:
The respiratory mucosa consists of pseudostratified ciliated columnar epithelium. This cellular covering has cilia that help remove mucus and trapped particles from the respiratory tract. Goblet cells produce mucus to trap irritants and protect the respiratory system.
Step-by-step explanation:
The respiratory mucosa consists of pseudostratified ciliated columnar epithelium, not stratified squamous cells. This cellular covering has cilia at the apical, or free, surface of the cells, which enhance the movement of mucus and trapped particles out of the respiratory tract. Goblet cells are also present in some tissues, which produce mucus to trap irritants and protect the respiratory system.