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Erin Y2 - Dermatology > Anatomy and Physiology > Flashcards

Anatomy and Physiology Flashcards

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Dermatology Board Prep flashcards
1
Q

Layers of the skin

A

Epidermis
Dermis
Subcutaneous fat/superficial fascia

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2
Q

Layers of the epidermis

A

Keratin layer
Granular layer
Prickle cell layer
Basal cell layer

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3
Q

Embryological origin of epidermis

A

Ectoderm

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4
Q

Embryological origin of dermis

A

Mesoderm

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5
Q

Structure of the dermis

A

Connective tissue

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6
Q

Structure of the subcutaneous fat/superficial fascia

A

Adipose tissue

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7
Q

Location and function of keratinocytes

A

Epidermis

Barrier formation

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8
Q

Location and function of melanocytes

A

Basal cell layer (embryologically from neural crest)
Pigment producing dendritic cells
UV protection

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9
Q

Location and function of Merkel cells

A

Basal cell layer

Mechanoreceptors - sensation

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10
Q

Location and function of Langerhans cells

A

Prickle cell layer
Dermis
Antigen-presenting cells/dendritic cells

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11
Q

Which skin cell has racket organelle/birbeck granule

A

Langerhans cells

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12
Q

Location and function of Pacinian corpuscles

A

Dermis (just beneath epidermis)

Pressure sensation

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13
Q

Location and function of Meissners corpuscles

A

Dermis (deep)

Vibration sensation

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14
Q

Components of pilosebaceous unit

A

Hair
Hair follicle
Arrector pili muscle
Sebaceous gland

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15
Q

What muscle is involved in temperature regulation by moving hair?

A

Arrector pili

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16
Q

Hair growth phases

A 
Anagen = growing
Catagen = involuting
Telogen = resting
17
Q

Glands in the skin

A

Sebaceous
Eccrine
Apocrine

18
Q

Function of sebaceous gland

A

Excrete sebum

Lubricates hair follicles

19
Q

Function of eccrine gland

A

Thermoregulatory sweating

sympathetic cholinergic nerve supply

20
Q

Function of apocrine gland

A

Secrete oily fluid that develops odour

21
Q

What are Blaschko’s lines?

A

The lines of normal development in the skin

22
Q

3 stages of wound healing

A

Inflammation
Proliferation
Tissue remodelling

23
Q

What is primary intention healing?

A

When an acute wound is closed surgically

24
Q

What is secondary intention healing?

A

When an acute wound is left to heal on its own

25
Q

1st degree/superficial burn

A

Epidermis only

26
Q

2nd degree/partial thickness burn

A

Epidermis and dermis

27
Q

3rd degree/full thickness

A

Extends beyond the dermis

Erin Y2 - Dermatology (18 decks)

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