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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

A

Enamel

23
Q

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

A

True

24
Q

_______ connects two neighboring epithelial cells together:

a) Desmosome
b) Hemidesmosome

A

a) Desmosome

25
Q

_________ connects epithelial cells to the
basal lamina:

a) Desmosome
b) Hemidesmosome

A

b) Hemidesmosome

26
Q

_______ have many, many cells

a) Epithelial tissue
b) Connective tissue

A

a) Epithelial tissue

27
Q

______ has very little extracellular matrix

a) Epithelial tissue
b) Connective tissue

A

a) Epithelial tissue

28
Q

_______ have no blood supply

a) Epithelial tissue
b) Connective tissue

A

a) Epithelial tissue

29
Q

_______ have few cells

a) Epithelial tissue
b) Connective tissue

A

b) Connective tissue

30
Q

_____ is comprised mostly of extracellular matrix

a) Epithelial tissue
b) Connective tissue

A

b) Connective tissue

31
Q

Rich blood supply

a) Epithelial tissue
b) Connective tissue

A

b) Connective tissue

32
Q

Which type of cell junction allows the cell to attach to the basal lamina?

a) Desmosome
b) Hemidesmosome

A

b) Hemidesmosome

33
Q

T/F: A desmosome connects 2 adjacent cells together.

A

True

34
Q

Three anatomical areas of
gingival epithelium:

A
  1. Oral epithelium (OE)
  2. Sulcular epithelium (SE)
  3. Junctional epithelium (JE)
35
Q

_________ Joins connective tissue in a
wavy interface with epithelial ridges.

  1. Oral epithelium (OE)
  2. Sulcular epithelium (SE)
  3. Junctional epithelium (JE)
A
  1. Oral epithelium
36
Q

Which layers are in the oral epithelium

KL: keratinized layer
GL: granular layer
SL: superficial layer
PL: prickle cell layer
BL: basal layer

A

KL: keratinized layer
GL: granular layer
PL: prickle cell layer
BL: basal layer

All but the superficial layer

37
Q

The epithelial lining of the gingival sulcus is ______ and _________.

a) Thin & keratinized
b) Thick & non-keratinized
c) Thin & non-keratinized
d) Thick & keratinized

A

c) Thin & non-keratinized

38
Q

_______ extends from crest
of gingival margin to coronal edge of junctional epithelium.

  1. Oral epithelium (OE)
  2. Sulcular epithelium (SE)
  3. Junctional epithelium (JE)
A
  1. Sulcular epithelium
39
Q

The Sulcular epithelium has three cellular layers:

KL: keratinized layer
GL: granular layer
SL: superficial layer
PL: prickle cell layer
BL: basal layer

A
  1. Basal cell layer
  2. Prickle cell layer
  3. Superficial cell layer
40
Q

_________ & ________ epithelium joins connective tissue with a smooth interface and no epithelial ridges

  1. Oral epithelium (OE)
  2. Sulcular epithelium (SE)
  3. Junctional epithelium (JE)
A
  1. Sulcular Epithelium
  2. Junctional Epithelium
41
Q

_____ forms the base of the sulcus and joins gingiva to the tooth.

  1. Oral epithelium (OE)
  2. Sulcular epithelium (SE)
  3. Junctional epithelium (JE)
A
  1. Junctional epithelium
42
Q

T/F: In health, JE attaches to the tooth slightly coronal to (above) the CEJ

A

True

43
Q

T/F: Thin and nonkeratinized epithelium is easily penetrable by bacteria

A

True

44
Q

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

A
  1. Basal cell layer
  2. Prickle cell layer
45
Q

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)
A
  1. Junctional epithelium
46
Q

Connective tissue, also know as _______

A

Lamina propria

47
Q

The junctional epithelium + the gingival fibers =

A

dentogingival unit

48
Q

______ fibers encircle the tooth in a ring-like manner
(Supragingival Fibers)

A

Circular

SEM 1 (11 decks)

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