What type of cells line the sinuses and help with mucus production?

Ciliated epithelial cells are specialized cells that line the sinuses and play a crucial role in respiratory health. These cells are characterized by their hair-like structures known as cilia, which serve to move mucus out of the sinuses and into the nasal cavity. This function is vital because it helps trap dust, pathogens, and other particulates, preventing them from entering the lower respiratory tract. The movement of cilia, in conjunction with the production of mucus, contributes to the overall defense mechanism of the respiratory system.

In addition to providing protection, the mucus produced by these cells also helps to moisten and warm the air that we breathe, facilitating better gas exchange in the lungs. The combination of ciliated epithelial cells and mucus production is essential for maintaining clear airways and preventing infections.

The other cell types, while important in different contexts, do not fulfill the same specific role in the lining of the sinuses. Columnar cells, squamous cells, and pseudostratified epithelial cells have different functions and characteristics that do not align with the primary role of mucus production and movement in the sinuses.