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Flashcards in Oral cavity Deck (29)
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1

What are the 3 types of oral mucosa?

Masticatory, Lining, and Specialized

2

True or false; the gingiva and hard palate are found in the masticatory oral mucosa

true

3

What is the surface epithelium in the masticatory oral mucosa

keratinized or parakeratinized stratified squamous epi

4

What are the 2 parts of the lamina propria of the masticatory oral mucosa?

Papillary layer and reticular layer

5

True or false; the papillary layer of the lamina propr. in the masticatory mucosa is where you'd find blood vessels, nerves, sensory receptors and Meissner's corpuscles

true

6

Where would you find the lining mucosa of the oral cavity?

Soft palate, underside of tongue, floor of mouth, cheeks and lips

7

True or false; generally the surface epithelium of the lining mucosa is nonkeratinized stratified squamous q

true (sometimes parakeratinized)

8

What is the surface epithelium of the vermillion border (lips)

keratinized stratified squamous

9

True or false; areas of nonkeratinized stratified squamous is thicker than areas of keratinized

true

10

Where is the specialized mucosa found in the oral cavity

dorsal surface of tongue

11

What is unique about the filiform papillae in regards to surface epithelium

it has keratinized stratified squamous - the rest have stratified squamous

12

True or false; the mucosa of the tongue is thicker dorsally and thinner/smoother posteriorly

true

13

What are the 4 papillae?

Filiform, fungiform, foliate, and circumvallate

14

Which of the papillae is associated with small salivary glands that produce a serous fluid to cleanse taste buds

circumvallate (vallate)

15

True or false; taste buds are located on all papillae except filiform

true (when you're FILled up you don't want to taste anymore)

16

Where would you find the lingual salivary glands?

submucosa of the tongue

17

What do the intrinsic muscles of the tongue do?

change the shape of the tongue

18

What polarized columnar cell functions to produce enamel

ameloblasts

19

What is the hardest substance in the body?

enamel

20

True or false; once a tooth erupts there are no more ameloblasts - so cannot produce more enamel

true

21

True or false; dentin is harder than bone

true

22

What do odontoblasts function to repair and produce

dentin

23

What is predentin?

precursor to dentin before it is mineralized

24

True or false; dentin contains nerves and odontoblasts

true

25

True or false; odontoblast persist in adults

true

26

True or false; ameloblast persist in adults

false - they disappear once tooth erupts

27

What is the area beneath the odontoblasts?

dental papillae

28

Dental papillae which are beneath odontoblast contain what?

connective tissue with many blood vessels and nerves

29

What is the potential problem with dental papillae

extensive inflammation - which can effect the many blood vessels and nerves in the area