Pseudostratified

Definition

Pseudostratified refers to a type of epithelial tissue where cells appear to be layered, but all cells are in contact with the basement membrane. This gives the illusion of stratification despite being a single layer.

5 Must Know Facts For Your Next Test

1. Pseudostratified epithelium is commonly found in the respiratory tract.
2. It often contains cilia and goblet cells that help trap and move particles.
3. The nuclei of pseudostratified cells are at different levels, giving a stratified appearance.
4. Pseudostratified epithelium plays a role in secretion and protection.
5. It differs from true stratified epithelia as all cells reach the basement membrane.

Review Questions

• What makes pseudostratified epithelium appear layered?
• Where in the human body is pseudostratified epithelium commonly found?
• How does pseudostratified epithelium differ from truly stratified epithelial tissue?

Related terms

Simple Epithelium: A single layer of epithelial cells that covers surfaces or lines cavities.

Stratified Epithelium: Multiple layers of epithelial cells that provide protection against abrasion.

Cilia:

Hair-like structures on cell surfaces that move fluids and particles across cell surfaces.