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FD BLOCK > 17. Skin > Flashcards

17. Skin Flashcards

1
Q

largest organ of the body

A

Skin

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2
Q

Functions of the skin

A

Protection

Sensation

Thermoregulation

Metabolism

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3
Q

Keratinocytes

A

epidermis

produces keratin

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4
Q

Melanocytes

A

produce melanin

basal layer of the epithelium

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5
Q

Langerhans

A

immune cell

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6
Q

Papillary dermis

A

less collagen and elastic

more GAGs

small capillaries

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7
Q

Reticular dermis

A

dense collagen

thick elastic fibres

major blood vessels

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8
Q

Hypodermis

A

Deepest layer of the skin

nerves act as an insulator, shock absorber and food store

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9
Q

Sebaceous gland

A

Branched acinar gland

Produces sebum

Holocrine secretion

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10
Q

Free nerve endings

A

Epidermis

Pain, itch, temperature

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11
Q

Merkels discs

A

Epidermis Touch

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12
Q

Meissners corpuscles

A

Upper dermis Touch

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13
Q

Pacinian corpuscles

A

Lower dermis Pressure, vibration

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14
Q

Organ of Ruffini

A

Dermis Mechanoreceptor

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15
Q

Root hair plexus

A

Dermis Mechanoreceptor

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16
Q

Dermatitis

A

Inflammation of the skin

17
Q
A

1st degree burn

Epidermis affected

Heals in 7-10 days

18
Q
A

2nd degree burn

Epidermis & dermis affected

Heals in 3+ weeks

19
Q
A

3rd degree burn

All layers affected

No pain

Needs graft

20
Q

Excisional biopsy

A

lesion is completely removed

21
Q

Incisional biopsy

A

portion of the lesion is removed

22
Q

Biopsy techniques

A

Shave biopsy

Punch biopsy

Scalpel biopsy

Scissors biopsy

23
Q

Shave Biopsy

A

scalpel is used

shave off a thin layer of the lesion parallel to the skin

24
Q

Punch biopsy

A

small cylindrical punch

full thickness sample

25
Q

Scalpel biopsy

A

used to make a standard surgical incision or excision

26
Q

Scissors biopsy

A

Surface (superficial) skin growths and lesions

snipped off

27
Q
A

Atopic Eczema

Treatment using moisturisers and topical steroids

28
Q
A

Caused by human papilloma virus

Treatments include salicylic acid, freezing the wart (cryotherapy)

29
Q
A

Impetigo

Contagious skin infection

affects nose and mouth and trunk

Self limiting clearing within three weeks but may require antibiotics

30
Q
A

Psoriasis

May cause psoriatic arthritis with swelling and stiffness in the joints or lower back

Treatment by vitamin D analogues or topical steroids, phototherapy if severe

31
Q
A

Scabies

Infection by parasitic mites

Spread by direct skin-to-skin contact

Treatment with Permethrin 5% cream (insecticide)

32
Q
A

Sebaceous glands sensitive to normal blood levels of testosterone

Excessive growth of Propionibacterium acnes

33
Q
A

Ringworm

Contagious fungal infection

Treatment with antifungal cream

34
Q
A

Melanoma

35
Q
A

Basal Cell Carcinoma

non-melanoma skin cancer

most common skin cancer in the UK

36
Q
A

Squamous Cell Carcinoma

form of non-melanoma skin cancer

2nd most common skin cancer in the UK.

FD BLOCK (18 decks)

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