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

Oral Mucosa 1 and 2 - Krimm Flashcards

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
Q

4 functional implications of lining mucosa

A

Low stress

High flexibility

Incisions more likely to gape &
need to be sutured

Injections less painfu

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26
Q

is the masticatory mucosa keratinized or non-keratinized

A

keratinized (parakeratinized)

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27
Q

the masticatory mucosa has a _____ lamina propria ; meaning is has more _______ fibers and fewer ______ fibers

A

dense ; collagen ; elastic

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28
Q

the masticatory mucosa has many long, thin, connective _________

A

tissue papillae

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29
Q

the masticatory mucosa has submucosa that is variably present, if it’s not present, what do we call it

A

mucoperiosteum

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30
Q

Functional implications of masticatory mucosa

A

locations of high stress ,e.g.,
abrasion

Incisions don’t gape, may not require suturing

Injections more painful

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31
Q

nuclei that is visible going up to the surface is a sign that the tissue is _________

A

non-keratinized

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32
Q

in masticatory mucosa, the lamina propria is ______ flexible than lining mucosa

A

less

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33
Q

what mucosa is located on the soft palate

A

lining

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34
Q

what mucosa is more permeable? lining or masticatory

A

lining

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35
Q

the lamina propria of lining mucosa contains more type ___ collagen

A

3

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36
Q

part of the oral cavity bound by the lips and the cheek

  • includes: lip, buccal mucosa, alveolar mucosa
A

oral vestibule

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37
Q

separated from the vestibule by the
teeth and gingiva

  • includes: floor of oral cavity, tongue, palate, gingiva
A

oral cavity proper

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38
Q

what kind of mucosa is found in these locations:

upper lip
alveolar mucosa
soft palate
cheek
underside of tongue
floor of mouth

A

lining mucosa

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39
Q

what kind of mucosa is found in these locations:

gingiva
hard palate

A

masticatory mucosa

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40
Q

the lip has a ___ epithelium which allows us to see the blood vessels and why the lips appear red

what kind of epithelium?

A

thin ; keratinized

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41
Q

the skin has what kind of epithelium

A

keratinized

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42
Q

the skin has what 2 kinds of glands

A

sebaceous glands

eccrine sweat glands

43
Q

the vermillion (transitional) zone of the lips has numerous narrow ______ that are close to the surface in the papillae layer

A

papillae

44
Q

the vermilion (transitional) zone doesn’t have any _____ which makes it hard to stay moist

A

glands

45
Q

the vestibular surface is ____ and has what kind of epithelium

A

Thick ; nonkeratinized

46
Q

the vestibular surface contains minor _____ glands

A

salivary

47
Q

the buccal mucosa has a very _____
what kind of epithelium

A

thick ; nonkeratinized

48
Q

the buccal mucosa has papillae contain _____ and _______ fibers with a rich ______ supply

A

collage ; elastic ; vascular

49
Q

the buccal mucosa has minor _____ glands and sometimes _______ glands

A

salivary ; sabaceous

50
Q

misplaced sebaceous glands

A

fordyce spots

51
Q

the alveolar mucosa is ____ with what kind of epithelium

A

thin ; nonkeratinized

52
Q

the papillae in the alveolar mucosa are _____ or ______ ; with a ____ lamina propria containing _______ fibers

A

short ; absent ; thin ; elastic

53
Q

the alveolar mucosa has minor _____ glands

A

salivary

54
Q

the floor of the mouth has a very ____ what kind of epithelium

A

thin ; nonkeratinized

55
Q

the floor of the mouth has short _________

A

dermal papillae

56
Q

the floor of the mouth has _____ connective tissue containing ____ cells

A

loose ; fat

57
Q

the floor of the mouth has _____ salivary glands that are ____ but mostly ______

A

sublingual ; mixed ; mucous

58
Q

the soft palate has ____ what kind of epithelium

A

thin ; nonkeratinized

59
Q

the soft palate has _____ papillae with many ____ fibers in _____ lamina propria

A

short ; elastic ; deep

60
Q

the soft palate has lots of _____ glands of the palate

A

mucous

61
Q

what are the 2 subdivisions/zones of the hard palate

A

fatty zone

glandular zone

62
Q

the hard plate has thick ________ or ________ epithelium

A

parakeratinized ; keratinized

63
Q

the hard palate has numerous ______ and is rich in ______

A

papillae ; collagen

64
Q

trigeminal nerve innervation - what deals with pain

A

free nerve endings

65
Q

trigeminal nerve innervation - what deals with touch

A

meissener’s corpuscles

66
Q

trigeminal nerve innervation - what deals with temperature

A

krause end bulbs

67
Q

about 1/3 of the _______ are found in the dentogingival junction

A

desmosomes

68
Q

the dentogingival junction has large ________ spaces and a weak ___________

A

extracellular ; mechanical barrier

69
Q

new enamel epithelium gets converted to

A

junctional epithelium

70
Q

because new enamel epithelium gets converted to junctional epithelium, JE has different ______ and _____

A

development

origin

71
Q

what kind of eruption?

the bodily movement of the developing tooth through the overlying oral mucosa into the oral
cavity

A

active

72
Q

what kind of eruption?

the uncovering of the anatomic crown because of apical recession of the surrounding tissues

A

passive

73
Q

Passive Eruption - Stage 1

The junctional epithelium is located
entirely over the ______

A

enamel

74
Q

Passive Eruption - Stage 2

The junctional epithelium is located in part over the ______ and part over the _______

A

enamel ; cementum

75
Q

Passive Eruption - Stage 3

The entire junctional epithelium is
located over cementum, with its coronal end at the

A

cemento-enamel junction (CEJ)

76
Q

Passive Eruption - Stage 4

The entire junctional epithelium is
located ______ to the ________

A

apical ; CEJ

77
Q

sulcular epithelium faces the _____ but is not ________

A

tooth ; attached

78
Q

what attaches the junctional epithelium to the tooth

A

basal lamina-like structure

(basal lamina against tooth with hemi-desmosomes attached and intermediate filaments attached to the hemi-desmosomes)

79
Q

specialized mucosa of the tongue is located on the _______ surface of
the body (aka the __________) of the
tongue

A

superior ; anterior 2/3

80
Q

specialized mucosa of the tongue is characterized by

A

lingual papillae

81
Q

the epithelium of the specialized mucosa of the tongue may be ________ , _________ , or __________

A

keratinized
parakeratinized
nonkeratinized

82
Q

the __________ is a component of the lingual papillae of the specialized mucosa of the tongue

A

lamina propria

83
Q

Spine-shaped & heavily keratinized

Do not contain buds!

Innervated by somatosensory fibers

A

Filiform papillae

84
Q

mushroom shaped bumps

A

fungiform-papillae

85
Q

_________ papillae are located among more numerous filiform papillae

A

fungiform

86
Q

fungiform papillae has a keratin layer that is interrupted at the

A

pore

87
Q

Fungiform papillae on dorsal anterior tongue is innervated by

A

chorda tympani branch of VII

88
Q

__________ papillae is strategically located to monitor food entering mouth

A

fungiform

89
Q

_________ papillae has ~1600 taste buds and is most numerous at the tip

A

fungiform

90
Q

Buds are on the ________ surface of fungiform papillae

A

dorsal

91
Q

_________ papillae monitor food just before swallowing

A

circumvallate

92
Q

there are around 8-10 _________ papillae with ~2400 buds and they are concentrated

A

circumvallate

93
Q

_________ papillae have central connective tissue core surrounded by trench and are arranged in a “V” on the most posterior anterior tongue

A

circumvallate

94
Q

circumvallate tastebuds are located in the ______ , not the dorsal surface

A

trench

95
Q

circumvallate is innervated by

A

glossopharyngeal (CN IX)

96
Q

______ papillae has 2-9 parallel folds and dorsoventral orientation

A

Foliate

97
Q

_______ papillae are on the lateral aspect of most posterior anterior tongue (posterior to molars, anterior to CV’s)

A

foliate

98
Q

_______ papillae monitor food during chewing

A

foliate

99
Q

Foliate taste buds are located in
_____ ,not on the surface

A

trenches

100
Q

Foliate taste buds are closely associated with ________ glands

A

salivary

101
Q

Taste buds have primary afferent
fibers at base and some bud cells
make synapses with these fibers - this is how ______ communication happens

A

taste

102
Q

the lamina propria of lining mucosa has elastic fibers and what 2 types of collagen

A

type 1 and 3

103
Q

the lamina propria of masticatory mucosa has fewer elastic fibers and what 2 types of collagen (but more of which)

A

high in type 1 and less type 3

809 - Exam Block 2 (14 decks)

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