quiz Flashcards
Lamina propria contains
- Blood vessels
- Nerves
- Fibroblasts
- Microphages
- Mast cells
In what substance is fibroblast found
amorphous
amorphous substances are important for
healing
2 layers of the lamina propria
- Superficial papillary layer, outer layer, “nutrient highway”
- reticular layer, deeper and has thicker collagen fibers
3 kinds of oral mucosa
- lining
- masticatory
- specialized
functions of oral mucosa
- protection - chewing
- secrete - mucous
- sense - taste
where SSE and lamina propria meet
rete pegs
rete pegs
finger-like epithelial projections that allow passage of nutrients
Basement membrane
-supports epithelium
-connects epithelium to the lamina propria
-commonly referred to as a line of demarcation when viewed microscopically
submucosa
-under the LP
-there is elastic tissue containing blood vessels and nerves
- NO submucosa on the attached gingiva and hard palate because the LP is connected directly to the bone
purpose of epithelium
- Protection from chewing
- Secretion - mucous, keeps mouth moist
- sensory- tongue and taste
Desmosomes
-cell to cell connections (full cell); Junction points between cells in the epithelium
Characteristics oof desmosomes
-complex structures
-contains protein
-outer part of this filamentous structure is dense and rigid
-Damage to this structure is associated with autoimmune disease
>pemphigus
Hemidesmosomes
type of cell junction (1/2 cell)
half-moon cookie
characteristics of hemidesmosomes
-small structures found between keratinocytes
-damage to this structure is associated with disease like muscular dystrophy (MD)
