Structure-Function.org

Since you have the luxuryLuxury? Yes, a luxury because, on a lab practicum, your instructor will expect you to figure out the primary tissue type on your own. of already knowing this is epithelial tissue, notice that there appears to be multiple layers of cells that, upon closer examination, is actually only one layer of cells.

Pseudostratified Ciliated Columnar Epithelium

1. Nucleus
2. Cilia
3. Lamina propria
4. Pseudostratified ciliated columnar epithelium
5. Goblet cell
6. Lumen
7. Protection*
8. Lining upper respiratory tract and trachea

*A more detailed answer would be: secretion and propulsion of mucus that traps foreign particles (e.g., dust)