Pseudostratified Columnar Ciliated Epithelium

• The cell nuclei here are positioned in a manner suggestive of what type of epithelia?

  Stratified
• Pseudostratified columnar CILIATED epithelium lines the what?

  UPPER respiratory passages
• What are the 3 upper respiratory passages?

  Trachea, pharynx, and bronchi
• Cilia: motile structures
• Pseudostratified columnar ciliated epithelium can also be found in the LUMINA of EPIDIDYS and VAS DEFERENS with STEREOCILIA, which is nonmotile.
• Ciliated pseudostratified columnar epithelia is found in the linings of the trachea as well as the upper respiratory tract; protects the lungs from what?

  Irritants
• In the trachea, Goblet cells of the epithelium secrete mucus to trap particles and prevent them from traveling further down respiratory passages.