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809 - Exam Block 2 > Oral Mucosa 1 and 2 - Krimm > Flashcards

Oral Mucosa 1 and 2 - Krimm Flashcards

(103 cards)

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1
Q

the oral mucosa is an organ composed of 2 tissues, what are they

A

epithelium
lamina propria

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2
Q

3 functions of oral mucosa

A

protection - protects deeper tissues from mechanical forces and microorganisms

sensation - temperature, touch, pain and taste

secretion - Salivary glands secrete into the oral cavity. However, the oral mucosa also has serous and mucous
glands

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3
Q

Different oral regions are lined by _______ vs ______ epithelium, with distinctive epithelial cell types

A

keratinized ; non-keratinized

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4
Q

All epithelial cells = ______ because they contain ______

A

keratinocytes ; keratin

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5
Q

Keratins are large proteins that assemble into ________ ; and provide ________

A

intermediate filaments (tonofilaments)

cytoskeletal support

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6
Q

3 types of oral mucosa

A

lining
masticatory
specialized

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7
Q

what type of oral mucosa is this:

sheltered from stresses, nonkeratinized epithelium

Can be found in: lip, buccal wall, alveolar mucosa, floor of the oral cavity, soft palate

A

Lining mucosa

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8
Q

what type of oral mucosa is this:

higher stress areas, keratinized or
parakeratinized

Can be found in: hard palate and gums

A

masticatory

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9
Q

what type of oral mucosa is this:

mixed (keratinized, parakeratinized,
nonkeratinized)

Can be found in: tongue

A

specialized

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10
Q

stem cells are in what layer ? they also divide in this layer

A

stratum basale

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11
Q

in the lamina propia, papillae have an irregular _______ and _______

A

distribution ; height

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12
Q

Papillae contain what 3 things?

A

capillaries
sensory nerve fibers
Meissner’s corpuscles

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13
Q

submucosa contains _____ or _____

A

fat ; glands

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14
Q

the submucosa contains large _______ and _______ supplying the more superficial lamina propria

A

blood vessels
nerves

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15
Q

the submucosa separates the lamina propria from underlying _____ and ______

A

bone & muscle

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16
Q

does the mucoperiosteum have a submucosa

A

not really

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17
Q

the mucoperiosteum has epithelium connected straight to

A

bone

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18
Q

the mucoperiosteum is found in other oral regions, name them

A

gingiva
hard palate adjacent to gingiva and media to raphe

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19
Q

Collagen is greater for less ______
regions of the oral cavity

A

flexible

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20
Q

is the lining mucosa keratinized or non-keratinized

A

non-keratinized

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21
Q

the lamina propria in the lining mucosa has fewer ________ fibers and more ________ fibers

A

collagen ; elastic

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22
Q

the lamina propria in the lining mucosa has papillae of irregular _______ and _______

A

distribution and height

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23
Q

the lamina propria in the lining mucosa has a _______ present with glands and maybe fat

A

submucosa

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24
Q

the lamina propria in the lining mucosa has _____ and ______ attachment to bone

A

loose ; flexible

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25
4 functional implications of lining mucosa
Low stress High flexibility Incisions more likely to gape & need to be sutured Injections less painfu
26
is the masticatory mucosa keratinized or non-keratinized
keratinized (parakeratinized)
27
the masticatory mucosa has a _____ lamina propria ; meaning is has more _______ fibers and fewer ______ fibers
dense ; collagen ; elastic
28
the masticatory mucosa has many long, thin, connective _________
tissue papillae
29
the masticatory mucosa has submucosa that is variably present, if it's not present, what do we call it
mucoperiosteum
30
Functional implications of masticatory mucosa
locations of high stress ,e.g., abrasion Incisions don’t gape, may not require suturing Injections more painful
31
nuclei that is visible going up to the surface is a sign that the tissue is _________
non-keratinized
32
in masticatory mucosa, the lamina propria is ______ flexible than lining mucosa
less
33
what mucosa is located on the soft palate
lining
34
what mucosa is more permeable? lining or masticatory
lining
35
the lamina propria of lining mucosa contains more type ___ collagen
3
36
part of the oral cavity bound by the lips and the cheek - includes: lip, buccal mucosa, alveolar mucosa
oral vestibule
37
separated from the vestibule by the teeth and gingiva - includes: floor of oral cavity, tongue, palate, gingiva
oral cavity proper
38
what kind of mucosa is found in these locations: upper lip alveolar mucosa soft palate cheek underside of tongue floor of mouth
lining mucosa
39
what kind of mucosa is found in these locations: gingiva hard palate
masticatory mucosa
40
the lip has a ___ epithelium which allows us to see the blood vessels and why the lips appear red what kind of epithelium?
thin ; keratinized
41
the skin has what kind of epithelium
keratinized
42
the skin has what 2 kinds of glands
sebaceous glands eccrine sweat glands
43
the vermillion (transitional) zone of the lips has numerous narrow ______ that are close to the surface in the papillae layer
papillae
44
the vermilion (transitional) zone doesn't have any _____ which makes it hard to stay moist
glands
45
the vestibular surface is ____ and has what kind of epithelium
Thick ; nonkeratinized
46
the vestibular surface contains minor _____ glands
salivary
47
the buccal mucosa has a very _____ what kind of epithelium
thick ; nonkeratinized
48
the buccal mucosa has papillae contain _____ and _______ fibers with a rich ______ supply
collage ; elastic ; vascular
49
the buccal mucosa has minor _____ glands and sometimes _______ glands
salivary ; sabaceous
50
misplaced sebaceous glands
fordyce spots
51
the alveolar mucosa is ____ with what kind of epithelium
thin ; nonkeratinized
52
the papillae in the alveolar mucosa are _____ or ______ ; with a ____ lamina propria containing _______ fibers
short ; absent ; thin ; elastic
53
the alveolar mucosa has minor _____ glands
salivary
54
the floor of the mouth has a very ____ what kind of epithelium
thin ; nonkeratinized
55
the floor of the mouth has short _________
dermal papillae
56
the floor of the mouth has _____ connective tissue containing ____ cells
loose ; fat
57
the floor of the mouth has _____ salivary glands that are ____ but mostly ______
sublingual ; mixed ; mucous
58
the soft palate has ____ what kind of epithelium
thin ; nonkeratinized
59
the soft palate has _____ papillae with many ____ fibers in _____ lamina propria
short ; elastic ; deep
60
the soft palate has lots of _____ glands of the palate
mucous
61
what are the 2 subdivisions/zones of the hard palate
fatty zone glandular zone
62
the hard plate has thick ________ or ________ epithelium
parakeratinized ; keratinized
63
the hard palate has numerous ______ and is rich in ______
papillae ; collagen
64
trigeminal nerve innervation - what deals with pain
free nerve endings
65
trigeminal nerve innervation - what deals with touch
meissener's corpuscles
66
trigeminal nerve innervation - what deals with temperature
krause end bulbs
67
about 1/3 of the _______ are found in the dentogingival junction
desmosomes
68
the dentogingival junction has large ________ spaces and a weak ___________
extracellular ; mechanical barrier
69
new enamel epithelium gets converted to
junctional epithelium
70
because new enamel epithelium gets converted to junctional epithelium, JE has different ______ and _____
development origin
71
what kind of eruption? the bodily movement of the developing tooth through the overlying oral mucosa into the oral cavity
active
72
what kind of eruption? the uncovering of the anatomic crown because of apical recession of the surrounding tissues
passive
73
Passive Eruption - Stage 1 The junctional epithelium is located entirely over the ______
enamel
74
Passive Eruption - Stage 2 The junctional epithelium is located in part over the ______ and part over the _______
enamel ; cementum
75
Passive Eruption - Stage 3 The entire junctional epithelium is located over cementum, with its coronal end at the
cemento-enamel junction (CEJ)
76
Passive Eruption - Stage 4 The entire junctional epithelium is located ______ to the ________
apical ; CEJ
77
sulcular epithelium faces the _____ but is not ________
tooth ; attached
78
what attaches the junctional epithelium to the tooth
basal lamina-like structure (basal lamina against tooth with hemi-desmosomes attached and intermediate filaments attached to the hemi-desmosomes)
79
specialized mucosa of the tongue is located on the _______ surface of the body (aka the __________) of the tongue
superior ; anterior 2/3
80
specialized mucosa of the tongue is characterized by
lingual papillae
81
the epithelium of the specialized mucosa of the tongue may be ________ , _________ , or __________
keratinized parakeratinized nonkeratinized
82
the __________ is a component of the lingual papillae of the specialized mucosa of the tongue
lamina propria
83
Spine-shaped & heavily keratinized Do not contain buds! Innervated by somatosensory fibers
Filiform papillae
84
mushroom shaped bumps
fungiform-papillae
85
_________ papillae are located among more numerous filiform papillae
fungiform
86
fungiform papillae has a keratin layer that is interrupted at the
pore
87
Fungiform papillae on dorsal anterior tongue is innervated by
chorda tympani branch of VII
88
__________ papillae is strategically located to monitor food entering mouth
fungiform
89
_________ papillae has ~1600 taste buds and is most numerous at the tip
fungiform
90
Buds are on the ________ surface of fungiform papillae
dorsal
91
_________ papillae monitor food just before swallowing
circumvallate
92
there are around 8-10 _________ papillae with ~2400 buds and they are concentrated
circumvallate
93
_________ papillae have central connective tissue core surrounded by trench and are arranged in a "V" on the most posterior anterior tongue
circumvallate
94
circumvallate tastebuds are located in the ______ , not the dorsal surface
trench
95
circumvallate is innervated by
glossopharyngeal (CN IX)
96
______ papillae has 2-9 parallel folds and dorsoventral orientation
Foliate
97
_______ papillae are on the lateral aspect of most posterior anterior tongue (posterior to molars, anterior to CV’s)
foliate
98
_______ papillae monitor food during chewing
foliate
99
Foliate taste buds are located in _____ ,not on the surface
trenches
100
Foliate taste buds are closely associated with ________ glands
salivary
101
Taste buds have primary afferent fibers at base and some bud cells make synapses with these fibers - this is how ______ communication happens
taste
102
the lamina propria of lining mucosa has elastic fibers and what 2 types of collagen
type 1 and 3
103
the lamina propria of masticatory mucosa has fewer elastic fibers and what 2 types of collagen (but more of which)
high in type 1 and less type 3

809 - Exam Block 2 (16 decks)

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