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Histology > Exam 2 – Lecture 14: Skin > Flashcards

Exam 2 – Lecture 14: Skin Flashcards

1
Q

What are the roles of the skin?

A

Protection
Homeostasis
Sensory
Endocrine

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2
Q

What does the skin do for protection?

A

Acts as a barrier

Immunologic roles

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3
Q

What does the skin do for homeostasis?

A

Fluid maintenance
Thermoregulation
Excretory regulation

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4
Q

What are the layers of the skin?

A

Epidermis
Dermis
Subcutis
Epidermal derivatives

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5
Q

What can be found in the subcutis?

A

Panniculus

Hypodermis

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6
Q

What are epidermal derivatives formed from?

A

Epidermis

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7
Q

What are examples of epidermal derivatives (adnexa)?

A

Hair
Nails
Hooves
Glands

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8
Q

What kind of cells make up the epidermis?

A

Stratified squamous epithelium

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9
Q

Describe keratinocytes

A

No nucleus after maturity
Dandruff-like stuff
Found in stratified squamous epithelium

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10
Q

What can be found in the epidermis?

A

Keratinocytes
Melanocytes
Langerhans’ cells
Merkel cells

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11
Q

What are melanocytes involved in?

A

Pigment

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12
Q

What do langerhans’ cells do?

A

Antigen presentation

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13
Q

What do merkel cells do?

A

Sensory

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14
Q

What glands are found in the epidermis?

A

Sweat
Mammary
Sebaceous

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15
Q

What are glands usually lined with?

A

Cuboidal epithelium

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16
Q

What are the 5 layers of epidermis called?

A

Stratum

17
Q

What makes up the stratum?

A 
S. corneum
S. lucidum
S. granulosum
S. spinosum
S. basale
18
Q

Look at picture of epidermis

A

Look at picture of epidermis

19
Q

What is in the dermis?

A

Hemidesmosomes
Dermal papillae
Dermal ridges
Papillary and reticular layers

20
Q

What is the subcutis formed by?

A

Loose reticular connective tissue

21
Q

What can be found in the subcutis?

A

Adipose connective tissue

22
Q

Where are SubQ injections given?

A

Subcutis

Histology (30 decks)

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