Oral cavity

Question 1

What are the 3 types of oral mucosa?

Answer 1

Masticatory, Lining, and Specialized

Question 2

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

Answer 2

true

Question 3

What is the surface epithelium in the masticatory oral mucosa

Answer 3

keratinized or parakeratinized stratified squamous epi

Question 4

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

Answer 4

Papillary layer and reticular layer

Question 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

Answer 5

true

Question 6

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

Answer 6

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

Question 7

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

Answer 7

true (sometimes parakeratinized)

Question 8

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

Answer 8

keratinized stratified squamous

Question 9

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

Answer 9

true

Question 10

Where is the specialized mucosa found in the oral cavity

Answer 10

dorsal surface of tongue

Question 11

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

Answer 11

it has keratinized stratified squamous - the rest have stratified squamous

Question 12

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

Answer 12

true

Question 13

What are the 4 papillae?

Answer 13

Filiform, fungiform, foliate, and circumvallate

Question 14

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

Answer 14

circumvallate (vallate)

Question 15

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

Answer 15

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

Question 16

Where would you find the lingual salivary glands?

Answer 16

submucosa of the tongue

Question 17

What do the intrinsic muscles of the tongue do?

Answer 17

change the shape of the tongue

Question 18

What polarized columnar cell functions to produce enamel

Answer 18

ameloblasts

Question 19

What is the hardest substance in the body?

Answer 19

enamel

Question 20

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

Answer 20

true

Question 21

True or false; dentin is harder than bone

Answer 21

true

Question 22

What do odontoblasts function to repair and produce

Answer 22

dentin

Question 23

What is predentin?

Answer 23

precursor to dentin before it is mineralized

Question 24

True or false; dentin contains nerves and odontoblasts

Answer 24

true

Question 25

True or false; odontoblast persist in adults

Answer 25

true

Question 26

True or false; ameloblast persist in adults

Answer 26

false - they disappear once tooth erupts

Question 27

What is the area beneath the odontoblasts?

Answer 27

dental papillae

Question 28

Dental papillae which are beneath odontoblast contain what?

Answer 28

connective tissue with many blood vessels and nerves

Question 29

What is the potential problem with dental papillae

Answer 29

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