3. Oral mucous membrane

Aug 19, 2020 · 4m 42s
3. Oral mucous membrane
Description

ORAL MUCOUS MEMBRANE:- KERATINIZED MUCOSA  Hard palate  Gingiva (70% para & 30% ortho) NON – KERATINIZED (stratum cornea absent)  Soft palate  Floor of mouth  Alveolar...

show more
ORAL MUCOUS MEMBRANE:-

KERATINIZED MUCOSA
 Hard palate
 Gingiva (70% para & 30% ortho)

NON – KERATINIZED (stratum cornea absent)
 Soft palate
 Floor of mouth
 Alveolar mucosa
 Sulcular epithelium
 Buccal mucosa

SPECIALISED MUCOSA
 Dorsum of tongue

LAYERS OF MUCOSA
EPITHELIUM
LAMINA LUCIDA
BASEMENT MEMBRANE (contains TYPE IV COLLAGEN)
LAMINA DENSA
CONNECTIVE TISSUE
 Basement membrane connections to epithelium
 Via — desmosoms and hemidesmosomes

LAYERS OF EPITHELIUM
Stratum cornea (surface layer)
Stratum granulosum
Stratum spinosum
Stratum basalis (innermost layer)
 Most common epithelium – squamous epithelium
 No blood supply
 How does epithelium get Nutrition? By diffusion from connective tissue
a) Stratum basalis – highly dividing cells
b) Odland bodies (reserve bodies) – stratum spinosum
c) Stratum granulosm – contains granules that get activated from enzymes and produce keratin for the cornea layer of the epithelium
d) Stratum cornea – keratin deposition


KERATINIZATION
a) Para keratinized (with nuclei) — 70% gingiva
b) Ortho keratinized (devoid nuclei) — 30% gingiva

NON KERATINOCYTES:-
 Free nerve cells
 Melanocytes
 Langerhan cells
show less
Information
Author Dr.Mayakha Mariam
Organization Dr.Mayakha Mariam
Website -
Tags
-

Looks like you don't have any active episode

Browse Spreaker Catalogue to discover great new content

Current

Podcast Cover

Looks like you don't have any episodes in your queue

Browse Spreaker Catalogue to discover great new content

Next Up

Episode Cover Episode Cover

It's so quiet here...

Time to discover new episodes!

Discover
Your Library
Search