Skin Flashcards

1
Q

What is the function of the skin?

A

Protection, Sensation, movement and growth, excretion, immunity and temperature control

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2
Q

What does the skin protect the body from?

A

Micro organisms, dehydration, UV radiation and mechanical trauma

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3
Q

What is the sensation of the skin?

A

What you feel for example hot, cold, pain, touch and pressure

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4
Q

What is the first line of defence of the skin?

A

The epidermis

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5
Q

What is the epidermis made of?

A

Epithelial tissue

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6
Q

How many layers does the Epidermis have?

A

Five

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7
Q

What protein does the epidermis make?

A

Epidermal growth factor (EGF)

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8
Q

The epidermis does not contain?

A

Nerves or glands

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9
Q

Is the epidermis avascular in vascular?

A

Avascular

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10
Q

What layer is at the bottom of the epidermis?

A

Stratum basale (base layer)

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11
Q

What is the spiny layer?

A

Stratum spinosum

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12
Q

Granular layer?

A

Stratum Granulosum

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13
Q

Clear layer?

A

Stratum Lacidum

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14
Q

What is the top layer of the epidermis?

A

Stratum corneum

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15
Q

What layer in the epidermis does mitosis happen?

A

Stratum basale

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16
Q

What layer does the dead cells shed through the skin?

A

Stratum corneum

17
Q

How many cells are in the epidermis?

A

Four

18
Q

What are the four cells in the epidermis?

A

Keratinocytes Keratin, Melanocytes Melanin, Dendritic and Merkel

19
Q

What is the role of Keratinocytes?

A

Consists of protein which gives the skin its toughness

20
Q

What is the role of melanocytes?

A

Gives our skin pigmentation and shields the skin from UV radiation

21
Q

What is the role of the Dendritic?

A

Part of the immune system and begins life in the bone marrow and migrates to the skin

22
Q

What is the role of the Merkel?

A

Connects the nerve endings and form touch receptors

23
Q

When is the Dermoepidermal Junction?

A

Between the dermis and the epidermis

24
Q

How does the dermoepidermal junction cause blisters?

A

The blister is form when the two layers seperate and allows fluid between

25
Q

What are the two layers of the dermis?

A

Papillary layer and Reticular layer

26
Q

What is the cell found in the dermis?

A

Fibroblasts

27
Q

What happens to fibroblasts as we age?

A

Our body produces less