oral mucosa

Question 1

waldeyer’s ring

Answer 1

anatomical location of lymphoid tissue found posteriorly along pharyngeal wall

Question 2

sebaceous glands

Answer 2

fordyce granules

-yellow aggregates

Question 3

what is found in the submucosa

Answer 3

• blood vessels
• nerves
• salivary and sebaceous glands

Question 4

mucoperiosteum location

Answer 4

-gingiva and parts of the hard palate

Question 5

what is unique about the mucoperiosteum

Answer 5

NO submucosa, which provides a firm inelastic attachment

* lamina propria attached directly to periosteum

Question 6

lamina propria of oral mucoperiosteum

Answer 6

has sharp dense fibers, few and smaller vessels

Question 7

2 functional populations of oral epithelium

Answer 7

1. progenitor

2. maturing

Question 8

progenitor pop

Answer 8

provides new cells

Question 9

maturing pop

Answer 9

differentiation or maturation to form protective layer (ie. K or NK)

Question 10

rate of proliferation is ____(higher or lower) in gingiva vs cheek

Answer 10

rate is higher for gingiva

Question 11

KSSE location

Answer 11

• masticatory mucosa

- hard palate, gingiva, dorsal part of tongue

Question 12

NK SSE location

Answer 12

• labial mucosa
• buccal mucosa
• ventral tongue
• soft palate
• floor of the mouth

Question 13

describe the pathologic correlation with NK and K SSE

Answer 13

K of NK tissue can occur in response to chronic irritation or pre-cancerous conditions

Question 14

types of cells seen in NKSSE

Answer 14

• melanocytes
• langerhans cells (immune)
• merkel cell (not dentritic!)
• inflammatory cells

Question 15

oral pigmentation can occur in response to

Answer 15

increased melanin deposition

Question 16

what type of collagen is seen in lamina propria

Answer 16

1 and 3

basal lamina has 4 and 6

Question 17

what type of collagen is present in inflamed tissue

Answer 17

type 5!

Question 18

what cells are present in lamina propria (LP)

Answer 18

• fibroblasts
• macrophages
• mast cells
• inflammatory cells
• endothelial cells

Question 19

types of mucosa

Answer 19

1. masticatory
2. lining
3. specialized

Question 20

what is found between the hard and soft palate

Answer 20

palatine raphe

-some submucosa present

Question 21

regions of the lip

Answer 21

• skin
• vermillion zone
• intermediate zone
• labial mucosa (buccal mucosa)

Question 22

skin

Answer 22

• thin KSSE

- dermis, sebaceous glands, hair follicles, sweat glands

Question 23

vermillion zone

Answer 23

• thin ORTHO KSSE
• many narrow CT papillae
• meissner’s corpuscles
• no salivary glands! few sebaceous glands

Question 24

intermediate zone

Answer 24

• thin PARA KSSE
• long irregular CT papillae
• submucosa has minor salivary glands and fat

Question 25

labial mucosa (buccal mucosa)

Answer 25

- thin NKSSE - long CT papilla - dense fibrous ct - submucosa: dense collagenous CT, fat, minor salivary glands

Question 26

what condition is associated with ther vermillion zone

Answer 26

solar elastosis

Question 27

v shaped groove that separates the two parts of dorsal tongue

Answer 27

sulcus terminalis

Question 28

anterior 2/3 of tongue

Answer 28

-body (1 pharyngeal arch)

Question 29

posterior 1/3

Answer 29

base (3rd pharyngeal arch)

Question 30

lymphoid tissue (lingual tonsils) are found

Answer 30

posterior 1/3 of tongue

Question 31

minor salivary glands of the dorsal tongue (lamina propria) are found

Answer 31

posterior portion ONLY

Question 32

mucosa of tongue is bound to

Answer 32

CT around muscles of tongue

Question 33

the tip of the sulcus terminalis

Answer 33

foramen cecum

Question 34

types of papilla on tongue

Answer 34

- filiform - fungiform - foliate - circumvallate

Question 35

filiform

Answer 35

- most numerous (covers anterior surface) - ortho KSSE - NO TASTE BUDS

Question 36

fungiform

Answer 36

- scattered at tip of tongue - NKSSE - taste buds

Question 37

foliate

Answer 37

- lateral margins of posterior tongue - NKSSE - some taste buds

Question 38

circumvallate

Answer 38

- adjacent and anterior to sulcus terminalis - glands of von ebner found under - superior surface is K, lateral is NK with taste buds

Question 39

what type of cells are found in he taste bud

Answer 39

gustatory epi cells