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SEM 1 > Microscopic Anatomy of the Periodontium > Flashcards

Microscopic Anatomy of the Periodontium Flashcards

1
Q

What are the 4 basic tissues?

A
  1. Epithelial
  2. Connective
  3. Muscle
  4. Nerve
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2
Q

__________ is a Gel-like substance (mesh-like) containing interwoven
protein fibers surrounding most cells.

A

Extracellular matrix

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3
Q

Serves as scaffolding for cells as it creates a framework where cells can interact with one another

A

Extracellular matrix

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4
Q

In epithelial tissue, extracellular matrix is

A

Sparse (scanty - not a lot between cells)

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5
Q

In connective tissue, extracellular matrix is

A

More plentiful (lots of it between cells)

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6
Q

Epithelial tissue lines the

A

Oral mucosa

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7
Q

Closely packed epithelial cells are bound into sheets or layers

A

Stratified epithelium

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8
Q

Epithelial cells secrete a thin mat of extracellular matrix called

A

Basal lamina

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9
Q

T/F: Keratinized epithelial cells have no nuclei

A

True

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10
Q

T/F: Keratinized tissue is very flexible

A

True

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11
Q

What are some examples of keratinized tissue in the oral cavity?

A
  1. Free gingiva
  2. Attached gingiva
  3. Dorsal of the tongue
  4. Lips
  5. Hard palate
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12
Q

T/F: The heaviest keratinized epithelium of the body is found on the palms of hands and soles of feet.

A

True

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13
Q

T/F: Nonkeratinized Epithelial Cells have no nuclei

A

False. The have a nuclei.

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14
Q

What are some examples of non-keratinized tissue in the oral cavity?

A
  1. Buccal and alveolar mucosa
  2. Ventral part of tongue
  3. Soft palate
  4. Floor of the mouth
  5. Sulcular epithelium
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15
Q

T/F: Epithelial cells are avascular

A

True. They receive nutrients through the underlying connective tissue through diffusion

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16
Q

____________ fills space between tissues and organs in the body and supports or binds other tissue.

A

Connective tissue

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17
Q

Three types of cells in gingival connective tissue:

A
  1. Fibroblasts
  2. Mast cells
  3. Immune cells: macrophages, neutrophils, and lymphocytes
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18
Q

cells that form extracellular matrix

A

Fibroblasts

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19
Q

cells that destroy invading microorganisms

A

Macrophages & Neutrophils

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20
Q

cells that are apart of the immune system

A

Lymphocytes

21
Q

4 Examples of dental connective tissue:

A
  1. Cementum
  2. Dentin
  3. Alveolar bone
  4. Pulp
22
Q

__________ of the tooth is derived from
epithelial tissue

23
Q

T/F: Interface (border) is where epithelial tissue and connective tissue meet and can be wavy or smooth

24
Q

_______ connects two neighboring epithelial cells together:

a) Desmosome
b) Hemidesmosome

A

a) Desmosome

25
_________ connects epithelial cells to the basal lamina: a) Desmosome b) Hemidesmosome
b) Hemidesmosome
26
_______ have many, many cells a) Epithelial tissue b) Connective tissue
a) Epithelial tissue
27
______ has very little extracellular matrix a) Epithelial tissue b) Connective tissue
a) Epithelial tissue
28
_______ have no blood supply a) Epithelial tissue b) Connective tissue
a) Epithelial tissue
29
_______ have few cells a) Epithelial tissue b) Connective tissue
b) Connective tissue
30
_____ is comprised mostly of extracellular matrix a) Epithelial tissue b) Connective tissue
b) Connective tissue
31
Rich blood supply a) Epithelial tissue b) Connective tissue
b) Connective tissue
32
Which type of cell junction allows the cell to attach to the basal lamina? a) Desmosome b) Hemidesmosome
b) Hemidesmosome
33
T/F: A desmosome connects 2 adjacent cells together.
True
34
Three anatomical areas of gingival epithelium:
1. Oral epithelium (OE) 2. Sulcular epithelium (SE) 3. Junctional epithelium (JE)
35
_________ Joins connective tissue in a wavy interface with epithelial ridges. 1. Oral epithelium (OE) 2. Sulcular epithelium (SE) 3. Junctional epithelium (JE)
1. Oral epithelium
36
Which layers are in the oral epithelium KL: keratinized layer GL: granular layer SL: superficial layer PL: prickle cell layer BL: basal layer
KL: keratinized layer GL: granular layer PL: prickle cell layer BL: basal layer All but the superficial layer
37
The epithelial lining of the gingival sulcus is ______ and _________. a) Thin & keratinized b) Thick & non-keratinized c) Thin & non-keratinized d) Thick & keratinized
c) Thin & non-keratinized
38
_______ extends from crest of gingival margin to coronal edge of junctional epithelium. 1. Oral epithelium (OE) 2. Sulcular epithelium (SE) 3. Junctional epithelium (JE)
2. Sulcular epithelium
39
The Sulcular epithelium has three cellular layers: KL: keratinized layer GL: granular layer SL: superficial layer PL: prickle cell layer BL: basal layer
1. Basal cell layer 2. Prickle cell layer 3. Superficial cell layer
40
_________ & ________ epithelium joins connective tissue with a smooth interface and no epithelial ridges 1. Oral epithelium (OE) 2. Sulcular epithelium (SE) 3. Junctional epithelium (JE)
2. Sulcular Epithelium 3. Junctional Epithelium
41
_____ forms the base of the sulcus and joins gingiva to the tooth. 1. Oral epithelium (OE) 2. Sulcular epithelium (SE) 3. Junctional epithelium (JE)
3. Junctional epithelium
42
T/F: In health, JE attaches to the tooth slightly coronal to (above) the CEJ
True
43
T/F: Thin and nonkeratinized epithelium is easily penetrable by bacteria
True
44
Junctional epithelium is comprised of what two cell layers: KL: keratinized layer GL: granular layer SL: superficial layer PL: prickle cell layer BL: basal layer
1. Basal cell layer 2. Prickle cell layer
45
The body’s attempt to “seal” the opening created during eruption results in: 1. Oral epithelium (OE) 2. Sulcular epithelium (SE) 3. Junctional epithelium (JE)
3. Junctional epithelium
46
Connective tissue, also know as _______
Lamina propria
47
The junctional epithelium + the gingival fibers =
dentogingival unit
48
______ fibers encircle the tooth in a ring-like manner (Supragingival Fibers)
Circular

SEM 1 (11 decks)

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