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Organ Histology > Stratified Epithelium > Flashcards

Stratified Epithelium Flashcards

1
Q

How many layers thick is stratified epithelium

A

2

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2
Q

What does stratified squamous epithelium protect from

A

Abrasion in moist environment

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3
Q

What are 2 limitations of stratified squamous epithelium

A

No protection from drying

Limited thickness

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4
Q

What are 4 locations of stratified squamous epithelium

A

Esophagus
Oral cavity
Tongue
Vagina

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5
Q

What is the example location of keratinized stratified squamous epithelium

A

Skin

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6
Q

What is the function of keratinized stratified squamous epithelium

A

Protection in a dry environment

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7
Q

What is the typical cell type of the skin

A

Keratinocytes

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8
Q

What layer of epithelium of the skin is mitotic and closest to the dermis

A

Stratum basale

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9
Q

What layer of epithelium of the skin contains multiple layers of “spiny shaped” keratinocytes”

A

Stratum spinosum

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10
Q

What is the uppermost layer of living cells of the epithelium of the skin

A

Stratum granulosum

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11
Q

What layer of epithelium of the skin is present only in thick skin

A

Stratum lucidum

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12
Q

What is the layer of epithelium of the skin is a layer of dead cells

A

Stratum corneum

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13
Q

What is the life cycle of skin cells

A

28 days

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14
Q

What type of cells protect against UV radiation

A

Melanocytes

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15
Q

What layer of skin are melanocytes found in

A

Stratum basale

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16
Q

Match eumalanin/pheomelanin with darker/lighter

A

Eumalanin: darker
Pheomelanin: lighter

17
Q

What is the name of the cell that is the antigen presenting cell

A

Langerhans cells

18
Q

What layer of skin are langerhans cells found in

A

Stratum spinosum

19
Q

What is the name of the cell type that is a touch receptor (epithelial tactile cells)

A

Merkel cells

20
Q

What layer of the skin do merkel cells reside

A

Stratum basale

21
Q

Melanocyte numbers ________ when exposed to UV light repeatedly

A

Increase

22
Q

Langerhans cells ___________ with repeated UV exposure

A

Decrease

Organ Histology (7 decks)

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