Correct Option
The correct option isCiliated columnar epithelium
Explanation
Epithelial tissues form the lining of body surfaces, cavities, and ducts. Their classification is based on cell shape (squamous, cuboidal, columnar) and arrangement (simple or stratified). Certain epithelial cells possess specialized structures like cilia to facilitate specific physiological functions such as the transport of substances.
Option Analysis
- Stratified squamous epithelium Stratified squamous epithelium: Incorrect. This tissue consists of multiple layers of flattened cells designed for protection against mechanical stress and friction. It is found in the skin, lining of the mouth, and esophagus, not in the respiratory tract for mucus movement.
- Ciliated columnar epithelium Ciliated columnar epithelium: Correct. These cells are tall and pillar-like, featuring hair-like projections called cilia on their free surface. In the respiratory tract (specifically the bronchi and bronchioles), the rhythmic beating of these cilia moves mucus and trapped dust particles toward the throat to be expelled or swallowed.
- Cuboidal epithelium Cuboidal epithelium: Incorrect. This tissue is composed of cube-shaped cells and is primarily involved in secretion and absorption. It is commonly found in kidney tubules and the ducts of glands.
- Glandular epithelium Glandular epithelium: Incorrect. While glandular epithelium is involved in the secretion of substances (like mucus, enzymes, or hormones), it is not the tissue responsible for the movement of that mucus along the tract.
Key Takeaway
Ciliated epithelium is specialized for moving particles or mucus in a specific direction over the epithelial surface. It is a characteristic feature of the respiratory tract and fallopian tubes.