Epithelial Tissue

Epithelial Function

• protection against abrasion

• radiation damage

• chemical stress

• invasion by pathogen

Epithelial Tissue

Epithelial Types

• A single organ can have different types of epithelial tissue based on the substances to which different surfaces are exposed.

Epithelial Cells

Ciliated Epithelial Cells

• Found in throat lining

• ​Hair like projections (cilia) they can beat like a wave.

• ​Wave like motion removes dust and germs from lungs

Epithelial Cells

Epithelial Cells

• Cells structure supports its function

Epithelial Cells

Classification of Epithelial

• Number of layers

  • ​Simple

  • ​Stratified

• ​Cell Shape

  • ​squamous

  • ​cuboidal

  • ​columinar

  • ​pseudostratified