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ORAL HISTO > PDL > Flashcards

PDL Flashcards

0
Q

Involves in SYNTHESIS and DEGRADATION of collageb

A

Fibroblasts

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1
Q

Principal cells of pdl

A

Fibroblasts

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2
Q

Ability to achieve exceptionally high rate of turnover of collagen

A

Fibroblasts

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3
Q

Cells that have
Well developed cytoskeleton
Prominent actin network

A

Fibroblasts

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4
Q

Provides strong mechanical attachments to adjacent cells

A

Adherens junc

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5
Q

Connection between intracellular actin and extracellular fibronectin

A

Fibronexus

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6
Q

Concavities or depressions in the bone made by clasts cell. Osteoblasts and cementoblast are located

A

Howships lacunae

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7
Q

Cementoprogenitor/ osteoprogenitor

A

Cementoblasts
Cementoclasts
Osteoblasts
Osteoclasts

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8
Q

Cells inside cementum. It forms cementum

A

CementoBlasts

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9
Q

Cells which resorb cementum
Loc in howships lacuna
Occur when there is excessive force applied during orthodontic tooth movt

A

Cementoclasts

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10
Q

Found in the peripheral part of pdl adjacent to bone

A

Osteoblasts

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11
Q

Observed when there is highly observed phases of bone resorption

A

Osteoclasts

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12
Q

Remnants of HERS

A

Epithelial cells - epithelial rests of malassez

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13
Q

Pdl
Eo:
F organ:
F cells:

A

Ectomesenchyme
Dental follicle
Fibroblasts

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14
Q

Epithelial cells can form _ if stimulated

A

Dental cysts

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15
Q

Epithelial cells release _ for maintenance and function

A

EGF molecules

16
Q

Source of new cells for pdl

A

Undifferentiated cells or progenitor cells

17
Q

Production of new cells must be balanced by

A

Migration of cells out of pdl

Cell death or apoptosis

18
Q

Physiologic cell death

A

Apoptosis

19
Q

4 cells in the pdl

A

Fibroblasts
Cementoprogenitor/osteoprogenitor
Epithelial cells
Undiff or progenitor cells

20
Q

Predominant collagen fibers in pdl

A

Type 1 and 3

21
Q

Provides tensile strength to the pdl

A

Type 1 and 3 collagen fibers

22
Q

Fibers arranged in definite fiber bundles

A

Collagen fibers

23
Q

Fibers within the bundle are not parallel but

A

Interwoven

24
Q

Main component of collagen fiber

A

Type 1

25
Q

Principal fiber bundles from CEMENTUM to BONE

A

Dentoalveolar group

26
Q

Basic component of collagen fiber

A

Collagen fibrils

27
Q

Classification of collagen fiber bundles

A

Due to origin and insertion

Based on functional orientation

ORAL HISTO (11 decks)

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