Non-Keratinized Mucosa In The Mouth

Non-Keratinized Mucosa In The Mouth

Non keratinized mucosa
Answer:

Areas with non-keratinized mucosa:

• Lining mucosa
• Labial and buccal mucosa
• Alveolar mucosa
• Mucosa of ventral aspect of tongue
• Mucosa of the floor of the mouth.
• Soft palate

Histological features:

1. Epithelium

• Have high rates of mitosis
• Three layers are present

1. Stratum basale
   • Made up of a single layer of cuboidal cells
   • These cells undergo mitosis, thus producing new cells
   • Adjacent cells are attached by desmosomes
2. Stratum intermedium
   • Cells are larger
   • Contains intermediate keratin filaments which are sparsely distributed within cells
   • Cells are attached by desmosomes
3. Stratum superficial
   • Contains nucleated cells
   • Contains less number of tonofilaments and lacks keratohyalin granules
   • These cells desquamate

2. Lamina propria

• It is thin containing dense connective tissue and short irregular papillae

3. Submucosa

• It varies in different areas