Final answer:
The respiratory mucosa contains ciliated cells, goblet cells, basal cells, and brush cells.
Step-by-step explanation:
The respiratory mucosa contains several cell types:
- Ciliated cells: These cells have apical plasma membrane extensions called cilia that beat rhythmically to move mucus and other substances through the respiratory tract.
- Goblet cells: These specialized columnar epithelial cells produce mucus, which traps debris and irritants, preventing them from reaching the lungs.
- Basal cells: These cells are located at the base of the respiratory mucosa and help in the regeneration of surface epithelial cells.
- Brush cells: These cells are sensory cells found in the respiratory mucosa that communicate with nerve endings.
Therefore, the correct answer is e. All of the above.