epithelial tissues

How are Epithelial Tissues Classified?


Epithelial tissues are classified based on the number of cell layers and the shape of the cells.
Number of Cell Layers:
Simple epithelium: Single layer of cells.
Stratified epithelium: Multiple layers of cells.
Pseudostratified epithelium: Appears to have multiple layers due to cell nuclei at different levels but is actually a single layer.
Shape of Cells:
Squamous: Flat and thin cells.
Cuboidal: Cube-shaped cells.
Columnar: Taller, column-like cells.
Transitional: Cells that can change shape, found in the urinary bladder.

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