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Oral Histology > Oral Mucosa > Flashcards

Oral Mucosa Flashcards

(53 cards)

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0
Q

True or false. Oral mucosa has no sweat and sebaceous glands?

A

True

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1
Q

Embryonic origin of oral mucosa?

A

Ectoderm and endoderm

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2
Q

Type of oral mucosa characterized as pliable?

A

Lining mucosa

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3
Q

Senses perceived by the oral mucosa? (4)

A
  • Temperature
  • Touch
  • Pain
  • Taste
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4
Q

Has the thinnest epithelium?

A

Floor of the mouth

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5
Q

Embryonic origin of lamina propria of oral mucosa?

A

Mesoderm

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6
Q

Mucoperiosteum is found in what type of oral mucosa?

A

Masticatory mucosa

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7
Q

Another term for lamina propria?

A

Corium

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8
Q

Layers of the lamina propria? (2)

A
  • Papillary layer
  • Reticular layer
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9
Q

Layer containing keratohyaline granules?

A

Stratum granulosum

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10
Q

Layers containing tonofibrils? (2)

A
  • Granulosum
  • Spinosum
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11
Q

Layer with intercellular bridges?

A

Spinosum

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12
Q

Layer with shiny appearance?

A

Spinosum

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13
Q

Intercellular filaments inserting into the desmosomes?

A

Tonofilaments

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14
Q

Circular or oval areas of cell membrane adhering by attachment plaque?

A

Desmosomes

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15
Q

True or false. Lining mucosa is thicker than keratinized epithelium?

A

True

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16
Q

Layers of non keratinized epithelium? (3)

A
  1. Superficiale
  2. Intermedium
  3. Basale
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17
Q

Layer with slight increase in size and accumulation of glycogen in cells of the surface layers?

A

Intermedium

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18
Q

Cells having clear halo around the nucleus (clear cells)?

A

Nonkeratinocytes

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19
Q

What are the nonkeratinocytes? (4)

A
  • Melanocytes
  • Langerhan cells
  • Merkels cells
  • Inflammatory cells
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20
Q

What non keratinocytes have no desmosomal attachment?

A

Merkels cells

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21
Q

True or false. Melanocytes varies in number among individuals?

Study These Flashcards
A

False. Same number

22
Q

Color differences is caused by? (2)

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A
  • Activity of melanocytes
  • Rate of melanin production
23
Q

Pigmented lesions in the oral mucosa? (3)

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A
  • Oral melanotic macule
  • Nevus/mole
  • Melanoma
24
Malignant proliferation of melanocytes?
Melanoma
25
Benign proliferation of melanocytes?
Nevus/mole
26
Cells with immune functions?
Langerhans cells
27
Cells with sensory function?
Merkel cells
28
Merkel cells are found in what layer?
Basal layer
29
Characterized with stipples/interdental folds?
Attached gingiva
30
It forms the epithelial cuff?
Gingiva
31
Gingiva found between teeth in proximal view?
Interdental col
32
True or false. Attached gingiva is normally smooth?
False
33
Interface between the gingiva and the tooth?
Dentinogingival junction
34
3 parts of the epithelial portion?
* Junctional * Sulcular * Oral gingival
35
Grade of keratinization: Without nuclei? %?
Orthokeratinization 20-30%
36
Grade of keratinization: Found only in the marginal gingiva? %?
Incomplete parakeratinized 7-10%
37
Grade of keratinization: Has pyknotic nuclei? %?
Parakeratinized 50-70%
38
Supraalveolar fibers implicated in post orthodontic relapse?
Transseptal fibers
39
Supragingival fibers inserting interdentally into the supraalveolar cementum to the free gingiva of adjacent tooth?
Transgingival or intergingival fibers
40
Circular fibers are also called?
Semicircular fibers
41
Supraalveolar fibers between the lingual papilla and labial papilla?
Interpapillary fibers
42
Supraalveolar fibers connecting the circular fiber bundles of neighboring teeth?
Intercircular fibers
43
First stage of passive eruption: Bottom of gingival sulcus is on the \_\_\_\_\_? Apical end of attachment at the \_\_\_\_\_?
Enamel CEJ
44
Second stage of passive eruption: Bottom of gingival sulcus is on the \_\_\_\_\_? Apical end of attachment at the \_\_\_\_\_?
Enamel Cementum
45
3rd stage of passive eruption: Bottom of gingival sulcus is on the \_\_\_\_\_? Apical end of attachment at the \_\_\_\_\_?
CEJ Cementum
46
4th stage of passive eruption: Bottom of gingival sulcus is on the \_\_\_\_\_? Apical end of attachment at the \_\_\_\_\_?
Cementum Cementum
47
True or false. Soft palate has taste buds?
True
48
Type of oral mucosa where it is easier to inject anesthesia? Why?
Lining mucosa Because of the submucosal layer
49
Has the thickest non keratinized mucosa?
Labial and buccal mucosa
50
Lingual papilla except the filiform has non keratinized or keratiniez mucosa?
Nonkeratinized
51
Linea alba is keratinized or non keratinized?
Keratinized
52
Match: 1. Scarlet fever: ? 2. Measles: ? 3. Pernicous anemia: ? 4. Vit D deficiency: ?
1. strawberry tongue 2. koplick spots 3. magenta and smooth tongue 4. atrophic glossitis

Oral Histology (11 decks)

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