The outermost moist lining of the Oral cavity is called the Oral Mucosa. It has 3 main functions Protection, Sensation and Secretion. Oral Mucosa is continuous with the Skin but is entirely different in composition and structure due to the varied functions in the oral cavity.
Based on the function the various areas of the oral cavity have different type of Oral mucosa divided into 2 types: Keratinized oral mucosa and Non Keratinized oral mucosa
Gingiva is 75% Para Keratinized, 15% Keratinized and 10% non-keratinized.
Keratinized Areas of Oral Mucosa:
- Masticatory mucosa – Gingiva and Hard palate
- Vermillion border of lip
- Oral or Outer Epithelium
Non Keratinized Areas of Oral Mucosa:
- COL
- Junctional epithelium
- Sulcular epithelium
- Lining mucosa – Lip, cheek, vestibular fornix, alveolar mucosa, floor of mouth and soft palate
- Specialized mucosa -Dorsum of tongue and Taste buds
its awesome explaination!!!!!!!!!
Can we get difference under LM and EM??
Could you please explain about :what differences are between keratinize ,nonjeratinizeand parakeratinize ?thankyou ??
Keratinized means presence of keratin layer and non keratinized means absence of that layer. ParaKeratinized is same with keratinized except cell nuclei are present in stratum corneum in parakeratinized.