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Histology > Tissues - Epithelial Tissue > Flashcards

Tissues - Epithelial Tissue Flashcards

0
Q

What does epithelial tissue cover?

A

All surfaces

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1
Q

What are the four basic tissue types?

A

Epithelial
Connective
Muscle
Nerve

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2
Q

What does epithelial tissue separate?

A

Us from the environment.

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3
Q

What is epithelial tissue derived from?

A

Ectoderm (skin)
Endoderm (respiratory)
Mesoderm (fascia)

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4
Q

What are the functions of epithelial tissue?

Hint: Please Take Silly Sam Saturday

A 
Protection
Tissue Absorption
Secretion
Sensory 
Specialized functions
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5
Q

How is epithelial tissue made?

A

Closely grouped cells with little or no intercellular substance.

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6
Q

Is epithelial tissue capable of renewal?

A

Yes

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7
Q

How is epithelial tissue bound together?

A

Desmosomes & Hemidesmosomes

epithelial cell to epithelial cell

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8
Q

True or False; epithelial tissue is vascular.

A

False; it is avascular and receives raw materials from substances it is bound to.

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9
Q

What is unstratified epithelium?

A

A single layer of cells.

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10
Q

What does unstratified epithelium line?

A

Blood & Lymph vessels
Heart, Lungs & Kidneys
Glands & Gland Ducts
Inner Enamel Epithelium (produces enamel and is made up of columanr cells)

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11
Q

What is stratified epithelium?

A

Two or more cell layers.

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12
Q

How is stratified epithelium classified?

A

Surface layer cell shape.

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13
Q

What are the classifications of stratified epithelium?

A

Squamous
Cubodial
Columnar
Transitional

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14
Q

Which classification of stratified epithelium is further categorized as keratinized or non-keratinized?

A

Squamous

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15
Q

What classification of stratified epithelium is associated with salivary gland histology?

A

Cubodial & Columnar

16
Q

How is epithelial tissue regenerated?

A

Superficial cells are lost and new cells are produced at the deepest level.

17
Q

True or False; Oral epithelial cells renew slower than skin.

A

False, oral epithelial cells renew faster.

18
Q

How long does it take for gingival tissue to repair?

A

4-6 days

19
Q

How long does it take for oral lining to repair?

A

10days - 2weeks

20
Q

The rate of repair of epithelial tissue is dependent upon what factor?

A

Damage of the connective tissue.

21
Q

What is basement membrane?

A

Thin, non-living structure between epithelium and connective tissue.

22
Q

What two layers is the basement membrane made up of?

A

Basal Lamina

Reticular Lamina

23
Q

What is the basal lamina made up of?

A

Lamina densa & Lamina Lucida

Light & Dark

24
Q

How is the basement membrane attached to the epithelium?

A

Hemidesmosomal attachment.

Histology (3 decks)

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