oral mucosa Flashcards
why are some drugs administered in the lining mucosa
give example of this
it is permeable
angina medication GNT, administered sublingually in lining mucosa allowing rapid absorption, resulting in angina relief
what is the Gingival Epithelium
Keratinised Masticatory mucosa
where is the gingival sulcus
between tooth and gingivae
▪ Junctional Epithelium at its base
▪ 0.5-3mm deep
▪ >3mm = pathological
▪ contains gingival crevicular fluid
describe the Sulcular Epithelium
non keratinised
descrube the Junctional Epithelium
WORST PART OF MOUTH
Rapid turnover of cells
Many intercellular spaces - 5-18% of the epithelium
▪ LEAKS
▪ Gingival Crevicular Fluid passes
through allowing bateria to exist
connective tissue
Functions of the tongue
Ingestion:
▪ Mastication
▪ Suckling
▪ Swallowing
▪ Cleansing mouth
Sensory:
▪ Taste/gustation
▪ Touch/mechanoreception.
Integrated action
▪ Speech
describe the toung apperance
little furs - Filiform papillae
little dots - taste buds Fungiform papillae
big folds - foliates papillae
big dots - circumvallate
what is the Filiform papillae location
structure
Anterior part of the tongue
- Cone shaped (furry appearance)
– Connective tissue core
– Keratinised tips - epithelial cover
* creates tough abrasive surface
– Non-keratinised epithelium inbetween
* flexibility
describe the receptors on the tongue
what is the location of the Fungiform papillae
appearance
Anterior part of the tongue
red spots, around 200
what is the location of the Foliate papillae
Lateral margin of posterior aspect
What is the location of the circumvallate papillae
anterior to sulcus terminalis
what are the enlarged parts posterior to mandibular teeth called
mandibular tori
what is the thick enlargment that can run down the middle of palate
palatal torus
