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The most prevalent of the stratified epithelia is the squamous variety. As a keratinized or waterproofed component of the skin, stratified squamous epithelium provides substantial protection against friction, microbial invasion and dessication.Keratinized stratified squamous epithelium is identified by the multiple layers of dead cells at the surface.s a keratinized or waterproofed component of the skin, stratified squamous epithelium provides substantial protection against friction, microbial invasion and dessication. Keratinized stratified squamous epithelium is identified by the multiple layers of dead cells at the surface.
EPITHELIUM â¢ epithelium is a tissue composed of a layer of cells.â¢ Epithelium lines both the outside (skin) and the inside cavities and lumen of bodies.â¢ The outermost layer of our skin is composed of dead stratified squamous epithelial cells, as are the mucous membranes lining the inside of mouths and body cavities.unctions of Epithelial Tissue â¢ Protection â¢Epithelial cells from the skin protect underlying tissue from mechanical injury, harmful chemicals, invading bacteria and from excessive loss of water. â¢ Sensation â¢Sensory stimuli penetrate specialised epithelial cells.