Question

What cell types are found in the respiratory mucosa?

a. Ciliated cells
b. Goblet cells
c. Basal cells
d. Brush cells
e. All of the above

Answer 1

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.