Chapter 3- The Integumentary System- Dermatology

Unit 3.1 Basic Concepts:

Integumentary System = The skin

Roots for skin: cutaneo/dermo

Outermost layer that is visible = epidermis

Describe the epidermis: Made of large cells that look like scales of a fish under the microscope

Scaly apperance = Squamous

Deeper layer under epidermis = dermis

Dermis Charteristics:

Thicker than the epidermis,

Fewer cells

More thick fibers to give skin strength and flexablity

Home to hair follicles, nerves and glands

Hair follicles:

Definition: Root of ur hair

Roots: pilo/tricho

Purpose: Follicles anchor the hair to the skin and provide nerves in ur skin make it the largest sensory organ in ur body

2 types of glands: Sweat and sebacous gland

Sweat glands:

Roots: hidro

Purpose: relases sweat to RID body waste AND cool the body

Sebaceous glands:

Roots: sebaceo

Purpose: Secrete oil as a natural noisturizer for skin and hair

Roots:

Fat = adip / o, lip / o, steat / o

Skin = cutane/ o, /derm/ o, / dermat/o

Hair = pil/ o, trich/o

Sweat = hidr/o

Scale = squam/o

Nail = onych/o, ungu/o

Oil = seb/o, sebace/o

Hidden = crypt/o

Hard, horny = kerat/o

Dry = xer/o

Yellow = xanth/o

Red = erythr/o

white = leuk/o, alb/o

black = melan/o

Unit 3.2 Patient History, Problems and Complaints

Common reason to seek medical attention relating to skin = rash

Painful = dermatalgia/ dermatondiyna

Itchy = pruritus

Hives = urticaria

Oily secretion = seborrhea

Very dry = xerosis

Very wet = macerate

Too much sweat = hyperhidrosis

Not enough sweat = anhidrosis

Loss of pigment = depigmentation

Darkening of the skin = hypermelanosis

Albinism = lack pigment

Hair follicles = embedded in the skin

Hypertrichosis = hair problem is too much

abrasion = scraping away of skin

ab / rasion

albinism = lack of pigment in skin causing patient to look white

albin/ ism

albino = person afflicted with albinism

albino

alopecia = baldness

Greek for fox

anhidrosis = lack of sweating

an/hidr/osis

comedo = a hair follicle that is plugged with sebum(black heads)

Latin for to eat up

cyanhidrosis = blue sweat

cyan/hydr/osis

depigmentation = loss of pigmenitation

de/pigment/ation

dermatalgia = skin pain
dermat / algia

dermatodynia = skin pain

dermato/ dynia

dermatolysis = loose skin

dermato/lysis

erythema = redness

erythroderma = red skin

erythro/ derma

hemathidrosis = sweating blood

hemat / hidr / osis

hisropoiesis = formation of sweat

hidro / poiesis

hyperhidrosis = excessive sweating

hyper/ hidr / osis

hyperkerotosis = excessive growth of horny skin

hyper/ kerat/ osis

hypermelanosis = excessive melanin in the skin

hyper/ melan / osis

hyperpigmentation = excessive sweating in the skin

hyp/hidr/osis

hypomelanosis = diminished melanin in the skin

hyp/ melan/ osis

hypopigmentation = diminsed pigment in the skin

hypo/ pigment/ ation

leukoderma = white skin

leuko / derma

macerate = to soften the skin

Latin for make soft

onychophagia = eating or biting the nails

onycho / phagia

pruritus = an itch (Latin)

rhytidermia = wrinkled skin

rhyti/dermia

sebopoiesis = formation of oil

sebo/ poiesis

seborrhea = discharge of oil (sebum)

sebo / rrhea

trichomegaly = abnormmally thick hair

tricho/megaly

urticaria = swollen raised itchy areas of the skin

Latin for burning nettle

xanthoderma =. yellow skin

xantho / derma

xeroderma = dry skin

xero/ derma

xerosis = condition of dryness

xer/ osis

Unit 3.3 Observation and Discovery

Descriptions relate to the location, size, color, texture and filling or the rash or its pustules. Describes if rash is flat or raised

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Unit 3.4

Unit 3.5

Unit 3.6 Abberavtions of the Integumentary System

ABCDE = Asymmetry, border, color, diameter, evolving

AK = actinic keratosis

Bx = biopsy

C & S = culture and senstivity

Derm = dermatology

ID = intradermal

SC = subcutaneous

SQ = subcutaneous