Final answer:
The paranasal sinuses are lined by pseudostratified ciliated columnar epithelium with goblet cells.
Step-by-step explanation:
The paranasal sinuses are lined by pseudostratified ciliated columnar epithelium with goblet cells.
Respiratory epithelium in the paranasal sinuses is composed of a single layer of cells that appear stratified due to the arrangement of nuclei at different levels. These epithelial cells have cilia at their free surface, which help move mucus and trapped particles out of the sinuses. Goblet cells are interspersed in the tissue and produce mucus to trap debris
This epithelial lining functions to warm, humidify, and filter incoming air, and it also provides protection against microorganisms and harmful materials.