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Oral Mucosa

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aknight1302's version from 2015-12-10 03:30

Oral Mucosa

Question Answer
Tissue type of Buccal Mucosa?NON-KER Strat Squam
What is in Sub Mucosa?MINOR SG's, fat, blood supply, nerve supply
What areas are keratinized in the mouth?Hard palate, Gingival mucosa, Dorsal Tongue
Finger-like enfoldings of Lamina PropriaPapillae
How many taste buds in a human mouth?2,000-8,000
What are the only MINOR salivary glands to produce purely SEROUS saliva?Von Ebner's Glands (minor SG) in the base of the Circumvallate Papillae
Where are the Circumvallate Papillae?at the back of tongue against lingual tonsils
Filiform Papillae (description, location, function)"hair-like" keratinized strucures, cover most of the DORSAL surface of tongue, function in mastication and NOT TASTE
What 4 places are tastebuds found?Dorsal Tongue, Soft Palate, Epiglottis, Upper Esophagus
What are the 4 types of Papillae on the Dorsal Tongue?Filiform, Fungiform, Foliate and Circumvallate (3FC)
What type of neurons are in tastebuds?Bipolar neurons
Tissue type of Labial MucosaKERATINIZED Strat squam (none of the specialized skin structures that help it avoid drying out like sebaceous glands or hair, though) muchos vascularity and Sensation
Vermillion Bordertransition between Labial Mucosa and Skin of the face (surrounding lips) (problematic for cutting, scars unsightly)
Suckling Pad (tissue type, location, function)Para-Keratinized Strat Squam, in intermediate zone between labial mucosa and vermillion border of infants, induce oxytocin release in lactating mother
Suckling Pad induces what hormone release in mother?Oxytocin
What areas of the oral mucosa have NO minor salivary glands?Gingiva and Hard Palate (areas without any submucosa)
" _____ is the moist layer of epithelium that lines body cavities and communicates with the exterior."MUCOSA
True or False: Oral Mucous membrane is comprised of the epithelium up UNTIL its underlying Lamina Propria.FALSE. Oral Mucosa = Oral epithelium + underlying Lamina Propria layer
What is in oral submucosa?fat cells, blood and nerve supply, minor SG's
Loss or injury extending past the basement membrane in oral mucosaUlcer
Where are there sebaceous glands in oral mucosa?upper lip and buccal mucosa
Which is thicker in oral mucosa, Keratinized or Non-keratinized stratified squamos epithelia?Non-keratinized Strat Squam is thicker than keratinized
Distinctive feature of PARA-KERATINIZED epitheliaNuclei in outer keratinized layer
Mnemonic for layers in NON-KERATINIZED oral mucosaStuck In Peanut Butter (SIPB) Superficial layer, Intermedium layer, Prickle-cell Layer, Basal Layer
Mnemonic for layers in KERATINIZED oral mucosaKlean Grand Pa's Bathe (KGPB) Keratin layer, Granular layer, Prickle-cell layer, Basal layer
What area in oral mucosa has cells that lack LAMELLAR BODIES?underside of tongue (ventral)
As oral epithelial cells migrate toward the surface, they have more ____, ____, and ____ ?Tonofilaments, Lamellar bodies (membrane-coating vesicles), and Kerato-hyaline granules
What cellular components have a different appearance in keratinized and non-keratinized oral epithelial cells?Lamellar bodies (membrane-coating vesicles) (NOT Kerato-hyaline granules apparently, which are present in both Ker and Non-ker and appear the same...)
Cornification is an old term for _____Keratinization
In what layer do Kerato-hyaline granules interact with Tonofibrils?Granular layer (keratinized strat squam)
In what (oral mucosal epithelium) areas do the papillae extend furthest toward the surface?Hard palate and Attached Gingiva (periosteum)
How do basal cells attach to the basement membrane?vie Hemi-Desmosomes
what layers make up the Basal Lamina?Lamina Lucida & Lamina Densa
What is in Lamina Lucida?Integrins, Laminin, & Proteoglycan
What is in Lamina Densa?Proteoglycan and Collagen Type 4
What layers make up Lamina Propria?Superficial Papillary & Deep Trabecular
What types of Collagen are in the Lamina Propria?Collagen 1 & 3 (there are more but this is what was explicitly in slides)
What is the main cell type in Lamina Propria?Fibroblasts
Where are blood vessels & nerves in Oral Mucosa?in the Lamina Propria
The mucogingival junction is a junction between what?Gingiva (keratinized, masticatory) and Alveolar mucosa (non-keratinized, lining)
"Injection is difficult and swelling painful" in what Oral Mucosal epithelial type. This tissue type is found in what places?Keratinized Strat Squam; Gingiva and Hard Palate
Rugaewrinkle/folds on surface of hard palate
What is the name of the centerline of the palate?Mid palatal suture
Where is the ADIPOSE ZONE of the palate?Anterolateral (fatty deposits on posterior lateral portion of the hard palate (around mid palatal suture)
Where is the GLANDULAR ZONE of the palate?Posterolateral (soft palate)(lateral b/c not on mid palatal suture)
LINING Oral Mucosa has ____ collagen and _____ elastic fibersLESS collagen, MORE elastic fibers
What is the difference between Anterior 2/3rds and Posterior 3rd of the Dorsal tongue?Ant: Keratinized, more tastebuds and filliform papille; Post: Non-keratinized, w/ lymphoid tissue
What is the function of Filliform papillae?Mastication but NOT taste
Hairy tongue aka _____Hyperkeratosis
Which taste buds are the most effective at taste sensation?Circumvallate Papillae
Which taste buds are the most numerous on the Anterior portion of the tongue?Fungiform Papillae
What type of sensory neurons are in tastebuds?BIPOLAR
At the Dentogingival junction, what is the border of keratinized strat-squam? What is the border of non-keratinized strat-squam?ker: Free gingiva; non-ker: Sulcular Epithelium
What is the average depth of Gingival sulcus?1.8 mm
What is the cutoff depth for a periodontal pocket?3 mm
What Oral mucosa has 2 basal lamina?Junctional Epithelia (1 basal lamina against tooth surface, 1 basal lamina against Gingival Ligament)
What Oral mucosa is derived from the Reduced Enamel Epithelium?Junctional Epithelia (seals underlying tissue against sulcular space)
Crevicular Fluid comes from what area in the Oral Mucosa?Junctional Epithelia
The Junctional Epithelia leaks what fluid into the sulcular space?Crevicular fluid
What interdental gingiva show central depressions and is an epithelia similar to Junctional EpitheliaDENTAL COL
Waldeyer's Ring is made up of what tonsil types?Palatine tonsils, Lingual tonsils, & Adenoid tonsils
The Palatine, Lingual & Adenoid tonsils make up what?Waldeyer's ring
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