What tissue is keratinized in the mouth?
The gingiva is the highly keratinized epithelium and underlying connective tissue lamina propria that surrounds the teeth.
What is the function of oral epithelium?
Function of oral mucosa The oral mucosa has several functions. Its main purpose is to act as a barrier. It protects the deeper tissues such as fat, muscle, nerve and blood supplies from mechanical insults, such as trauma during chewing, and also prevents the entry of bacteria and some toxic substances into the body.
What is the keratinized gingiva?
The keratinized gingival is the part of the oral mucosa which covers the gingiva and hard palate. It extends from the free gingival margin to the mucogingival junction and consists of the free gingiva as well as the attached gingiva.
Which layer of the keratinized epithelium of the oral mucosa show mitotic activity?
The stratum basale features a layer of cuboidal or columnar cells that are above the basement membrane to which hemidesmosomes attach them. These cells are known for their mitotic capacity.
Is oral mucosa keratinized?
Oral gingival epithelium is keratinized while the sulcular and junctional epithelia (JE) as well as the lining mucosa are not keratinized (14).
Where is keratinized tissue found?
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. They are also found in the oral cavity where eating, speaking and breathing could lead to significant loss of water.
What is keratinized mucosa?
Keratinized tissue, also known as keratinized mucosa, refers to the band of tissue surrounding your teeth at the point where they meet the gums. The word “keratinized” is used to describe cells that produce large amounts of a protein called keratin, making them strong and better at forming barriers.
Is oral mucosa Keratinized?
Why is Keratinized gingiva important?
Keratinized gingiva provides stabilization to the periodontium, protects the teeth and implants from masticatory and external trauma, and provides a barrier to inflammatory infiltrate (Paiva, 2012).
What is Keratinized mucosa?
Where is Keratinized epithelium found?
skin
Keratinized epithelium has keratin deposited on the surface which makes it impermeable and dry. Examples of keratinized stratified squamous epithelium include skin, epidermis of the palm of the hand and sole of the foot, and the masticatory mucosa.
Why are some cells keratinized?
The cells on the surface of stratified squamous keratinized epithelium are very flat. Not only are they flat, but they are no longer alive. They have no nucleus or organelles. They are filled with a protein called keratin, which is what makes our skin waterproof.