oral mucosa

Question 1

what is the function of the oral mucosa?

Answer 1

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

Question 2

what are the 3 types of oral mucosa?

Answer 2

lining mucosa, masticatory mucosa, gustatory mucosa

Question 3

is masticatory mucosa keratinised, parakeratinised or nonkeratinised?

Answer 3

parakeratinised

Question 4

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

Answer 4

parakeratinised cells still contain a nucleus unlike keratinised cells

Question 5

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

Answer 5

connects mucosa and bone

Question 6

which type of oral mucosa has no submucosa?

Answer 6

masticatory mucosa

Question 7

what type of epithelium are found in masticatory mucosa?

Answer 7

keratinised stratified squamous

Question 8

where is masticatory mucosa found?

Answer 8

hard palate and attached gingiva

Question 9

is lining mucosa keratinised?

Answer 9

no

Question 10

which mucosa has a quicker turnover, lining or masticatory?

Answer 10

lining

Question 11

is gustatory mucosa keratinised, parakeratinised or nonkeratinised?

Answer 11

keratinised

Question 12

where is gustatory mucosa found?

Answer 12

dorsal of tongue

Question 13

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

Answer 13

papillae

Question 14

name the layers of the the oral mucosa

Answer 14

epithelium, lamina propria, submucosa, bone

Question 15

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

Answer 15

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

Question 16

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

Answer 16

mucogingival junction

Question 17

what cells in the oral mucosa are non-keratinocytes?

Answer 17

melanocytes, merkel cells, langerhans cells

Question 18

what is the function of melanocytes?

Answer 18

pigment producing

Question 19

what is the function of merkel cells?

Answer 19

associated with mechanoreceptor neutrons

Question 20

what is the function of langerhans cells?

Answer 20

dendritic cells, antigens-presenting

Question 21

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

Answer 21

stratum basale or basal layer of epithelium

Question 22

where in the oral mucosa are langerhans cells found?

Answer 22

above basal layer of epithelium

Question 23

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

Answer 23

foliate, fungiform and vallate

Question 24

where are filiform and fungiform papillae found?

Answer 24

tip of tongue

Question 25

where are valuate papillae found?

Answer 25

back of tongue

Question 26

what are the other 2 names for geographical tongue?

Answer 26

benign migratory glossitis, glossitis migrant

Question 27

which papillae is missing on geographical tongue?

Answer 27

filliform

Question 28

name some diseases of the oral mucosa

Answer 28

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

Question 29

which nerve innervates fungiform papillae ?

Answer 29

facial

Question 30

which nerve innervates filiform papillae ?

Answer 30

glossopharyngeal

Question 31

which nerve innervates circumvallate papillae ?

Answer 31

glossopharyngeal

Question 32

which type of papillae do not contain taste buds?

Answer 32

filiform