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AAP Upskill > Integumentery System > Flashcards

Integumentery System Flashcards

1
Q

What are the 3 main layers of the skin?

A
  • Epidermis
  • Dermis
  • Hypodermis
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2
Q

How many layers and found in the Epidermis?

A

5

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3
Q

What cells make up 90% of the Epidermis?

A

Keratinocytes

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4
Q

What % of the epidermal layer are Keratinocytes?

A

90%

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5
Q

What is the function of Kertin?

A
  • Protect skin from heath and minerals
  • Contribute to skin colour
  • Decrease water entry/loss
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6
Q

What % of the epidermal layer is melacytes?

A

8%

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7
Q

What is the role of Melanin?

A

Taken up by Keratiocytes to protect the nucleus from UV light

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8
Q

What % of the epidermis is Langerhan cells?

A

2%

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9
Q

How long does it take for a cell to travel from the bottom of the epidermis to the top?

A

2-3 weeks

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10
Q

What are the regions that the Dermal layer is divided into?

A
  • Papillary
  • Reticular
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11
Q

What are the functions of the papillary region?

A
  • Comprises of connective tissue that attach to the epidermal layer and vascular network.
  • Part of temperature regulation
  • Dermal papillae contain nerve endings including pain and touch receptors.
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12
Q

What % of your dermis is the reticular region?

A

80%

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13
Q

What does the reticular region consist of?

A

Interlocking collagen fibres run in various plains

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14
Q

What does the Hypodermis consist of?

A
  • Subcutaneous fat
  • Connective tissue
  • Sweat glands
  • Muscle
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15
Q

What are the functions of the Hypodermis?

A
  • Insulates
  • Absorbs shocks
  • Allows skin to move over underlying structures.
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16
Q

What are the functions of the skin?

A
  • Thermo regulation
  • Infection barrier
  • Sensory protection
  • Excretion of trace amounts of water and body waste
  • Absorption of lipid soluble substances.
17
Q

Define “Skin tare”.

A

Wound caused by shear, friction and/or blunt force result in separation of the skin layers.

18
Q

What constitutes to a partial thickness skin tare?

A

Separation of the epidermal and the dermal layer

19
Q

What constitutes to a full thickness skin tare?

A

Separation of the Epidermal, Dermal and hypodermal layers.

20
Q

What changes in the Dermal layers with age?

A
  • The Dermal and Epidermal junction thins with age
  • The Subcutaneous layer becomes thinner
  • Turnover of the keratinocytes reduces by 50%
21
Q

What are the complications of skin tares in the elderly?

A
  • Bleeding
  • Delayed wound healing
  • Cellulitis
  • pain
  • Localised infection
  • Sepsis
22
Q

What are the risk factors for skin breakdown/ poor skin integrity?

A
  • Diabetes
  • Oedema
  • Corticosteroid use
  • Dementia
23
Q

What key things are being looked for in a skin assessment?

A
  • Discomfort
  • Skin integrity
  • Colour changes
  • Various in heat, firmness or moisture

AAP Upskill (28 decks)

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