Integumentary System Flashcards

1
Q

Meissner’s Corpuscle

A

Light touch, papillary layer of dermis

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2
Q

Pacinian Corpuscle

A

Deep touch, reticular layer of dermis

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3
Q

Unmyelinated nerve ending in papillary dermis: low intensity stimulation from inflammation causes what symptom?

A

Itching

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4
Q

Unmyelinated nerve ending in papillary dermis: high intensity stimulation from inflammation causes what symptom?

A

Pain

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5
Q

Hair: Anagen

A

Growth phase (2-6yrs) 85%

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6
Q

Hair: Catagen

A

Transition phase (2-3wks) 1%

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7
Q

Hair: Telogen

A

Resting phase (3mos) 14%

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8
Q

Hair: Eumelanin

A

Brown/black

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9
Q

Hair: Pheomelanin

A

Blonde

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10
Q

Hair: Erythromelanin

A

Red

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11
Q

Hair: Absence of melanocytes

A

White

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12
Q

Hair: Loss of melanocytes

A

Gray

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13
Q

Lanula

A

White moon-shaped part of nails

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14
Q

Proximal Matrix

A

Produces dorsal plate (where you see pigment)

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15
Q

Distal Matrix

A

Produces ventral plate

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16
Q

Entire Matrix

A

Contains melanocytes

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17
Q

Tzanck smear

A

Viral test in office

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18
Q

KOH prep

A

Fungal test in office

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19
Q

Confluent

A

Grouped

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20
Q

Discrete

A

Separate

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21
Q

Annular

A

Complete circle

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22
Q

Arculate

A

Partial circle

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23
Q

Polycyclic

A

Several intersecting portions of a circle

24
Q

Serpiginous

A

Wavy, not straight, “snake-like”

25
Q

Guttate

A

Tear drop shaped

26
Q

Nummular

A

Coin-like

27
Q

Macule/Patch

A

Circumscribed alteration in color w/o change in texture, <1cm
Primary skin lesion

28
Q

Papule

A

Small, circumscribed palpable elevation, <1cm

Primary skin lesion

29
Q

Plaque

A

Broad, circumscribed palpable elevation >1cm

Primary skin lesion

30
Q

Pustule

A

Visible accumulation of free pus often situated in a pilosebaceous follicle or sweat duct
Primary skin lesion

31
Q

Nodule

A

Large, circumscribed, palpable mass

Primary skin lesion

32
Q

Vesicle

A

Visible accumulation of fluid within or beneath epidermis

Primary skin lesion

33
Q

Scale

A

Accumulation of excess keratin

Secondary skin lesion

34
Q

Crust

A

Concretion of dried serum, pus, or purulent exudate or debris

Secondary skin lesion

35
Q

Atrophy

A

Thinning of epidermis or dermis results in a depression of the skin

Secondary skin lesion

36
Q

Scar

A

Dental damage, abnormal collection of CT, thick and pink initially, later fades to white and is atrophic

Secondary skin lesion

37
Q

Erosion

A

Loss of epidermis

Secondary skin lesion

38
Q

Ulcer

A

More or less circumscribed loss of tissue into dermis/fat

Secondary skin lesion

39
Q

Excoriation

A

Scratch which removes the epidermis and results in small ulcer which may have a surmounting crust
Secondary skin lesion

40
Q

Fissure

A

Painful linear cleavage through the epidermis

Secondary skin lesion

41
Q

Erythema

A

Vasodilation causing a red/pink macule which blanched under pressure

42
Q

Purpura

A

Extravasation of red cells causing a purple red macule or papule which does not blanche

43
Q

Telangiectasia

A

Dilated blood vessel

44
Q

Lichenification

A

Hyperpigmented plaque produced by proliferation of keratinocytes and stratum corneum which results in thickening of the skin and accentuation of skin markings

45
Q

Xanthoma

A

Yellow red papule, plaque, or nodule formed by lipid deposition in the CT of the dermis and tendons

46
Q

Cyst

A

Sac containing liquid or semisolid material that feels resilient on palpation

47
Q

Wheal

A

Hive

Itchy, evanescent white papule or plaque due to transitory dermal edema

48
Q

Comedone

A

Greasy keratin filled plug wedged into dilated pilosebaceous follicle
Open - blackhead
Closed - whitehead

49
Q

Fitzpatrick skin type I

A

Always burns, never tans

50
Q

Fitzpatrick skin type II

A

Usually burns, sometimes tans

51
Q

Fitzpatrick skin type III

A

Sometimes burns

52
Q

Fitzpatrick skin type IV

A

Rarely burns

53
Q

Fitzpatrick skin type V

A

Very rarely burns

54
Q

Fitzpatrick skin type VI

A

Never burns, always tans

55
Q

Diagnostic Aids (skin)

A
  • appropriate light
  • palpation
  • dermoscopy
  • culture
  • biopsy