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Flashcards in oral mucosa Deck (32)
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1

what is the function of the oral mucosa?

protection (mechanical and infection), sensation, secretion, absorbtion, thermoregulation

2

what are the 3 types of oral mucosa?

lining mucosa, masticatory mucosa, gustatory mucosa

3

is masticatory mucosa keratinised, parakeratinised or nonkeratinised?

parakeratinised

4

what is the difference between a keratinised cell and a parakeratinised cell?

parakeratinised cells still contain a nucleus unlike keratinised cells

5

masticatory cells have a thick lamina propria (mucoperiosteum), what is the function of this?

connects mucosa and bone

6

which type of oral mucosa has no submucosa?

masticatory mucosa

7

what type of epithelium are found in masticatory mucosa?

keratinised stratified squamous

8

where is masticatory mucosa found?

hard palate and attached gingiva

9

is lining mucosa keratinised?

no

10

which mucosa has a quicker turnover, lining or masticatory?

lining

11

is gustatory mucosa keratinised, parakeratinised or nonkeratinised?

keratinised

12

where is gustatory mucosa found?

dorsal of tongue

13

the dorsal of the rogue contains small projections, some of which contain taste buds what are these called?

papillae

14

name the layers of the the oral mucosa

epithelium, lamina propria, submucosa, bone

15

name the layers of epithelium in the oral mucosa working from the outermost layer inwards

cornfield layer, granular layer, prickle cell layer, basal layer

16

what is the auction between lining mucosa and masticatory mucosa called?

mucogingival junction

17

what cells in the oral mucosa are non-keratinocytes?

melanocytes, merkel cells, langerhans cells

18

what is the function of melanocytes?

pigment producing

19

what is the function of merkel cells?

associated with mechanoreceptor neutrons

20

what is the function of langerhans cells?

dendritic cells, antigens-presenting

21

where in the oral mucosa are the merkel and melanocytes found?

stratum basale or basal layer of epithelium

22

where in the oral mucosa are langerhans cells found?

above basal layer of epithelium

23

name 3 types of papillae on the gustatory mucosa that contain taste buds

foliate, fungiform and vallate

24

where are filiform and fungiform papillae found?

tip of tongue

25

where are valuate papillae found?

back of tongue

26

what are the other 2 names for geographical tongue?

benign migratory glossitis, glossitis migrant

27

which papillae is missing on geographical tongue?

filliform

28

name some diseases of the oral mucosa

oral infection, recurrent ulceration, vesiculo-bullous lesions, pigmented lesions, white patches, premalignant conditions and oral cancer

29

which nerve innervates fungiform papillae ?

facial

30

which nerve innervates filiform papillae ?

glossopharyngeal