Question
Differentiate between keratinised and non-keratinised stratified squamous epithelia.

Answer

Differences between keratinised and non-keratinised stratified squamous epithelia are:
S. No.
Keratinised Stratified Squamous Epithelium
Non-keratinised Stratified Squamous Epithelium
1.
It is found over the surfaces exposed to drying.
It occurs over the surfaces which are not subjected to drying.
2.
The outer cells are dead.
The outer cells are living.
3.
The outer cells are filled with keratin.
Keratin is absent.
4.
It has adhesive lipid layer.
Lipid layer is absent.
5.
The epithelium is impervious to water.
Impermeability to water is low.

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