The basal layer remains in contact with the basement membrane, and keratinization begins with the spinous layer. Stratified squamous epithelium keratinized lies in closely every organ system where the body comes in close contact with the environment. epithelium. It has almost no intercellular spaces. They are also found in the oral cavity where eating, speaking and breathing could lead to significant loss of water. The parts of the mouth that feel a little rough such as the upper surface of the tongue and the hard palate at the roof of the mouth contain keratinized epithelia.

Functions of Stratified Squamous Epithelia Underlying Epithelia consisting of multiple cell layers are generally found in regions where there is mechanical or chemical abrasion and stress and these tissues protect underlying structures from harm. Stratified squamous epithelia are tissues formed from multiple layers of cells resting on a basement membrane, with the superficial layer (s) consisting of squamous cells. Retrieved from https://biologydictionary.net/stratified-squamous-epithelium/Biologydictionary.net Editors. The mouth contains both keratinized as well as non-keratinized stratified squamous epithelium. Keratinized epithelium forms the epidermis of the land vertebrates. Stratified Squamous Epithelium. The surface cells (outermost cell layer) of the keratinized epithelia are dead cells. Non-keratinized epithelia usually secrete mucus as an additional protective and lubricating layer and are seen in the Some organs, such as the anus, contain both keratinized and non-keratinized stratified squamous epithelia. Examples of non-keratinized stratified squamous epithelium include some parts of the oral cavity, Even non-keratinized surfaces, consisting as they do of keratinocytes, have a minor superficial keratinized layer of varying thickness, depending on the age of the epithelium and the damage it has experienced. “Stratified Squamous Epithelium.” Biologydictionary.net Editors. Even non-keratinized epithelium, such as the buccal mucosa, can generate calloused The development of keratinized tissue involves the loss of cell viability. Keratinized surfaces are protected from abrasion by Non-keratinized stratified squamous epithelium, image highlights the epithelial nucleuses, rest of the epithelial layer, underlying connective tissue and other epithelia Keratinized tissues are important where there is physical abrasion as well as the possibility of desiccation and water loss.

Underlying cell layers can be made of cuboidal or columnar cells as well. Keratinized cells are specially structured to be waterproof and reduce evaporation from underlying tissues and are therefore an important part of the epidermis or external skin. Section of the human skin showing the stratified squamous epithelial surface, referred to as the Non-keratinized surfaces must be kept moist by bodily secretions to prevent them from drying out. For instance, in people with a history of tobacco or alcohol abuse, the respiratory and digestive epithelia could become excessively keratinized. The stratified squamous epithelium, also known as epidermis, makes up the outer layer of skin, and it serves an important protective function.

Non-keratinised surfaces must be kept moist by bodily secretions to prevent them drying out and dying. Stratified squamous epithelia are tissues formed from multiple layers of cells resting on a basement membrane, with the superficial layer(s) consisting of squamous cells. Examples of Stratified Squamous Epithelial: