Answer :

Epithelial tissue can be classified according to cell shape and number of layers.

Epithelial tissues can be described as the tissues which form the outer covering of skin.

With concern to cell shape, epithelial tissues are divided into three main categories:

  • Squamous epithelium: These kinds of epithelial cells have a flat and wide structure.
  • Cuboidal epithelium: As the name suggests, these cells are recognized by their cuboidal shape.
  • Columnar epithelium: These cells are tall and have a slender shape.

With concern to the number of layers, the epithelial cells are classified into two broad categories:

  • Simple epithelial cells: These kinds of epithelial cells include a single layer of cells.
  • Stratified epithelial cells: These kinds of epithelial cells are made of two or more layers of cells.

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