OHS-FinalVCDHExamwith174CompleteQuestions&
Answers.
What are the types of oral mucosa? - Lining, Masticatoy, Specialized
What makes lining mucosa? - non keratinized epithelium with smooth interface, few rete
ridges, CT papillae with elastic fibers lamina propria and submucosa
What makes mastic...
OHS-Final VCDH Exam with 174 Complete Questions &
Answers.
What are the types of oral mucosa? - Lining, Masticatoy, Specialized
What makes lining mucosa? - non keratinized epithelium with smooth interface, few rete
ridges, CT papillae with elastic fibers lamina propria and submucosa
What makes masticatory mucosa? - ortho and parakeratinized epithelium, highly
interdigitated interface with many rete ridges, CT papillae with thin layer or NO
SUBMUCOSA
What makes specialized mucosa? - discrete structures of epithelium and lamina propria
What is the most common epithelium in the mouth? - Non keratinized stratified squamous
epithelium
What are the three layers associated with non keratinized stratified squamous epithelium?
- Superficial, intermediate, basal
What is the superficial layer also known as? - Stratum superficale
What is the intermediate layer also known as? - Stratum intermedium
What layer does NOT undergo mitosis? - Stratum intermedium/intermediate layer
What is the basal layer also known as? - Stratum basale
What layer is the deepest? - Basal/Stratum basale
What epithelium is the least common in the oral cavity? - Orthokeratinized stratified
squamous epithelium
What are the four layers of orthokeratinized epithelium? - Keratin layer(Stratum corneum),
Granular layer(Stratum granulosum), Prickle layer (Stratum spinosum), Basal layer
(Stratum basale)
, What epithelium is thought of as a form of immature othokeratinized epithelium? -
Parakeratinized stratified squamous epithelium
What is the differeence between Parakeratinized and orthokeratinized epithelium? - Same
layers but GRANULAR layer may be small or absent
Can nonkeratinized tissues become keratinized? - Yes due to friction or trauma
What do keratinocytes do? - Produce keratin-naturally and unnaturally
What are examples of nonkeratinocytes? - melanocytes, langerhans cells, garnets,
merkel, WBC
What is a langerhans cell? - dendritic bone marrow, immune response with T-lymphocytes
What is a granstein cell? - Dendritic bone marrow derived cell noted near basement
membrane *similar to langerhans cell*
What is a merkel cell? - neural cell noted near basement membrane, sensory function
What is the main group of lamina propria composed of? - Collagen fiber and fibroblasts
What are the types of papilla of the tongue? - filiform, fungiform, circumvallante
What type of tongue papilla is most common? - filiform
What are filiform composed of? - a thick layer of keratinized epithelium, NO TASTE BUDS
2-3mm in size
What is black hairy tongue the cause of? - Lack of shedding of filiform papilla
Where is lining mucosa found? - Buccal, labial, alveloar, floor of mouth, ventral tongue, soft
palate
Where is masticatory epithelium found? - Hard palate, Attached gingiva and doral of
tongue
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