GI I

Question 1

Anterior masticatory submucosa

Answer 1

adipose CT elements present

Question 2

posterior masticatory submucosa

Answer 2

minor salivary glands present

Question 3

Burton’s line is a symptom of what

Answer 3

lead poisoning

Question 4

What are the 3 strata of the lining mucosa

Answer 4

stratum basal
stratum spinosum
stratum superficiale

Question 5

Filiform papillae

Answer 5

covers most of the tongue

no taste buds

Question 6

fungiform papillae

Answer 6

contain taste buds
mushroom shaped
extenstions of lamina propria

Question 7

circumvallate papillae

Answer 7

largest
proximal to sulcus terminalis
deep moat along lateral margin on either side

Question 8

foliate papillae

Answer 8

not well developed in humans
found on lateral margin of tongue
have a moat

Question 9

Which CNs do taste buds have synaptic contact

Answer 9

VII, IX, or X

Question 10

parotid gland contains only _____ cells

Answer 10

serous

Question 11

What are the 3 major salivary glands

Answer 11

parotid
submandibular
sublingual

Question 12

Submandibular gland contains primarily _____ cells with some ______ cells

Answer 12

serous

mucous

Question 13

Serous demilunes are present where

Answer 13

submandibular gland

sublingual gland

Question 14

Sublingual gland

Answer 14

mucous cells predominate

Question 15

amylase

Answer 15

breaks down carbohydrates

Question 16

lipase

Answer 16

breaks down lipids

Question 17

_____ and ____ are both digestive enzymes

Answer 17

amylase

lipase

Question 18

lysozyme

Answer 18

antibacterial

Question 19

lactoperoxidase

Answer 19

antibacterial

Question 20

lactoferrin

Answer 20

binds iron

antibacterial in nature

Question 21

enamel

Answer 21

appears white

Question 22

dentin

Answer 22

deep to enamel

appears yellow

Question 23

cementum

Answer 23

outer coating of root

Question 24

clinical crown

Answer 24

portion of tooth exposed above gum line

Question 25

What does the center of the tooth contain?

Answer 25

vessels
nerve fibers
ct

Question 26

mature enamel is 96-98% ________

Answer 26

calium hydroxyapatite

Question 27

injured enamel can lead to what

Answer 27

cavity

Question 28

What are the important molecular signals of the bud stage

Answer 28

FGF-4

BMPs 2,4, 6

Question 29

stages of tooth development

Answer 29

Bud stage
Cap stage
Bell stage
Appositional dentin and enamel stage
tooth eruption
functional tooth

Question 30

bud stage

Answer 30

prominent invagination

Question 31

cap stage

Answer 31

oral epithelium and base undergoes differentiation

Question 32

bell stage

Answer 32

forms bell shaped components

Question 33

Ameloblasts are initially found in the ______ stage

Answer 33

secretory

Question 34

maturation -stage ameloblasts

Answer 34

stratum intermedium is absent, instead a papillary layer is present

Question 35

cementoblasts

Answer 35

become cementocyttes when surrounded by cementum

Question 36

acellular cementum

Answer 36

upper root area

Question 37

cellular cemetum

Answer 37

lower root

thicker

Question 38

odontoblasts

Answer 38

functino is for synthesis and elaboration of dentin

derived from neural crest cells

Question 39

Predentin

Answer 39

initial elaboration of dentin

need to be further mineralized

Question 40

mineralized dentin

Answer 40

mature dentin

have a yellowish componenet

Question 41

Important proteins found in dentin

Answer 41

dentin phosphoprotein

dentil sialoprotein

Question 42

Dentinal tubules

Answer 42

go through entire thickness of dentin

contain cellular processes extended from odontocytes