Layers Of Oral Keratinized Mucosa

Layers Of Oral Keratinized Mucosa

Keratinized mucosa / Strata in keratinized mucosa
Answer:

1. Basal layer
   • Cells are cylindrical or cuboidal
   • They are attached to the basement membrane
   • Cells have the ability to divide
   • One of the divided cells migrates to the superficial layer
   • Basal cells are separated from connective tissue by the basement membrane
   • Beneath the basal cell layer, the electro-lucent zone can be seen called lamina lucida
   • Beneath it, there is electron dense zone called lamina densa
   • Hemidesmosomes attach epithelium to the connective tissue
2. Stratum spinosum
   1. Large cells are present with short processes called spines
      This gives the cells a prickled appearance
   2. Cells are attached to one another with the help of desmosomes
3. Stratum granulosum
   • Keratohyalin granules are seen
4. Stratum corneum
   • The cytoplasm of cells in this layer is filled with keratin
   • It can be
     • Orthokeratinized- in this cells are devoid of nucleus
     • Parakeratinized- In this cells contains the pinpoint nucleus