Oral mucosa: oral biology lecture 3

Question 1

Oral mucosa is composed of which two tissue types:

Answer 1

• Epithelium – which lies superficially
• Connective tissue – which is underlying

Question 2

annotate this

Question 3

the oral mucosa is distributed in three groups:

what are they

Answer 3

masticatory mucosa

lining mucosa

specialised mucosa

Question 4

which type of oral mucosa would you not expect to find keratinised

Answer 4

lining mucosa

Question 5

which type of oral mucosa would you expect to find keratinised mucosa

Answer 5

masticatory mucosa

Question 6

the epitheliem has undulating interface with the lamina propria:

what is the definition of undulating

Answer 6

having a smoothly rising and falling form or outline

Question 7

non keratinised lining mucosa has less rete pegs compared to keratanised mucosa

identify the rete pegs in the answer image

Answer 7

Question 8

lamina propria and submucosa are both present in which mucosa

lining mucosa

keratinised masticatory mucosa

specialised mucosa

Answer 8

lining mucosa

Question 9

what are the four layers of the epithelium

Answer 9

superficial layer

intermediate layer

prickle cell layer

basal cell layer

Question 10

what do all epithelial cells have

Answer 10

filaments and desomosomes

Question 11

what are present in prickle cells

Answer 11

membrane coating granules

Question 12

which of the epithelial cells are the least differentiated

Answer 12

basal cells (mitosis often visible)

Question 13

which of the 4 layers of the epithelium are drugs absorbed through

Answer 13

intermediate layer

Question 14

which lining mucosa has a thick lamina propria

Answer 14

keratinised masticatory mucosa

Question 15

where would you find lamina propria firmly anchored to the bone

Answer 15

keratinsed masticatory mucosa

Question 16

in which lining mucosa would you find a periosteum

Answer 16

keratinised masticatory mucosa

Question 17

what two layers are replaced in lining epithelium for keratinsed epithelium

Answer 17

superficial and intermediate layer are replaced by

keratinised layer and granular layer

Question 18

which layer are clear cells normally found

Answer 18

basal cell layer

Question 19

what is the function of merkel cells:

Answer 19

touch receptors

Question 20

what is the function of melanocytes

Answer 20

production of melanin

Question 21

where are filiform papilae located

Answer 21

anterior part of tongue

Question 22

where are fungiform papillae located

Answer 22

anterior part of tongue

Question 23

what nerve innervates the fungiform papillae

Answer 23

VII facial - carried by the chorda tympani

Question 24

where are the foliate papillae located

Answer 24

lateral margin of posterior aspect

Question 25

what nerve innervates the foliate papilae

Answer 25

VII - anterior aspect

IX - glossopharyngeal

Question 26

where is the circumvalate papillae located

Answer 26

anterior to slucus terminalis

Question 27

what nerve innervates the sulcus terminalis

Answer 27

IX - glossopharyngeal