Module 4 Flashcards
inflammatory condition of the skin
symptoms of itching and burning
eczema
what is eczema also called
atopic dermatitis
due to an abnormality in the production of melanin
albinism
epidermal melanocytes are completely lost by an autoimmune process
vitiligo
inherited condition
silvery called rash
predominately on elbow, knees, scalp and trunk
psoriasis
lack of hair follicles and sebaceous glands
lack encapsulated sense organs
palms and soles
glabrous
presence of hair follicles and sebaceous glands
lack encapsulated sense organs
everywhere except palms and soles
hairy
outermost layer
renews 3-4 weeks
epidermis
what is the order of keratinization
basalis, spinosum, granulosum, lucidum, corneum
what percent of skin depth is epidermis
5%
what is the pigment of epidermis determined by
of melanocytes in basal layer
anatomical barrier
corneum
inner layer
95% of skin depth
dermis
what is the dermis composed of
connective tissue and papilae
what is the function of papilae
support and nourish epidermis
what is the physical barrier against mechanical friction and trauma
dermis
what is the role of the vascular bed
thermoregulatory
what is the role of the sebaceous gland
produces FFA (antifungal and antimicrobial)
what equipment is needed for the skin physical exam
magnifying glass, natural light, penlight, gloves, cm ruler
what are the most reliable sites for color
those with lease pigmentation
under tongue, buccal mucosa, palpebral conjunctiva, sclera
red and purple discolorations of less than .5 cm
petechiae
multiple petechiae or ecchymosis that run together
purpura
bruise
contusion
bright red circumscribed areas that may be flat or raised
cherry angioma
congential malformations of closely packed capillaries
strawberry hemangioma
red and purple patch located on peripheral nerve
port wine stain (nevous flammeus)
flat non palpable, but visually distinct
<1 cm
> 1 cm
<1 cm is macule (freckle)
>1 cm is patch (vitiligo)
solid extend into dermis
.5-2 cm
>2 cm
.5-2 cm is nodule (lipoma)
>2 cm is tumor (hemangioma)
raised solid lesions
<1 cm
>1 cm
< 1 cm is papule (warts)
>1 cm is plaque (psoriasis)
localized edema in epidermis and red elevation
wheal(insect bite and hives)
elevated mass containing serous fluid
<1 cm
>1cm
<1cm is vesicle (herpes)
>1cm is bulla (dermatitis)
vesicles and bullae that become filled with pus
pustule (acne)
encapsulated fluid filled mass in subcutaneous tissue
cyst (sebaceous and epidermal)
irregular red lines caused by dilation of capillaries
telangiectasia
keratinized cells flaking skin
scale (dandruff)
rough thickened epidermis
lichenification
loss of epidermal , exposing dermis
exoriation
loss of part of epidermis
erosion
what is scattered over the body
generalized
what does distribution mean
where and is it wide spread
what does arrangement mean
arranged in relation to eachother
lesions merge and run together
confluent
lesions are individual, separate, and distinct
discrete
lesions are clustered
grouped
what is configuration
shape and outline
circular pattern
annular
concentric circles
polycyclic
form a line
linear