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LOM 16

Skin

TermDefinition
adiposcyte fat cell
albino person with skin deficient in pigment (melanin)
apocrine sweat gland one of the large dermal exocrine glands located in the axilla and genital regions. It secretes sweat , that in action with bacteria, is responsible for the human body odor..
basal layer deepest region of the epidermis;it gives rise to all the epidermal cells.
collagen structural protein found in the skin and connective tissue.
cuticle band of epidermis at the base and sides of the ail plate.
dermis middle layer of the skin
eccrine sweat glands most numerous sweat-producing exocrine gland in the skin
epidermis outermost layer of the skin
epithelium layer of skin forming the outer and inner surfaces of the body
hair follicle sac within which each hair grows
integumentary system the skin and its accessory structures such as hair and nails.
keratin hard protein material found in the epidermis, hair and nails. keratin means horn and commonly is found in the horns of animals.
lunula the half-moon-shaped, whitish area at the base of the nail
melanin major skin pigment. it is formed by melanocytes in the epidermis.
paronychium soft tissue surrounding the nial border
poer tin opening on the surface of the skin
sebaceous gland oil-secreting gland in the dermis that is associated with hair follicles.
sebum oily substance secreted by sebaceous glands
squamous epithelium flat,scale-like cells composing the epidermis
stratified arranged in layers
stratum (plural;strata) a layer (of cells)
stratum corneum outermost layer of the epidermis, which consists of flattened, keratinized cells.
subcutaneous layer innermost layer of the skin, containing fat tissue
crust collection of dried serum and cellular debris
cyst thick-walled, closed sac or pouch containing fluid or semisolid material
pilonidal cyst found over the sacral area of the back in the midline and contains hairs
sebaceous cyst collection of yellowish, cheesy sebum commonly found on the scalp, vulva and scrotum
erosion wearing away or loss of epidermis
fissure groove of crack-like sore
macule flat lesion measuring less than 1 cm in diameter
nodule solid, round or oval elevated lesion 1 cm or more in diamete
papule small(less than 1 cm in diameter), solid elevation of skin (pimple)
polyp growth extending from the surgace of mucous membrane.
pustule papule containing pus
ulcer open sore on the skin or mucous membranes (deeper than an erosion) ; bedsores
vesicle small collection (papule) of clear fluid (serum) ;blister
wheal smooth,edematous (swollen) papule or plaque that is redder or paler than the surrounding skin (mosquito bite)
alopecia absence of hair from areas where it normally grows
alopecia areata autoimmune disease in which hair falls out in patches without scarring or inflammation
ecchymosis, echymoses bluish-purplish mark (bruise) on skin
petechia, petechiae small, pinpoint hemorrhage
pruritus itching
urticaria (hives) acute allergic reaction in which red, round wheals develop on the skin
acne chronic papular and pustular eruption of the skin with increased production of sebum
acne vulgaris caused by the buildup of sebum and keratin in the pores of the skin
blackhead (open comedo) sebum plug partially blocking the pore
whitehead (closed comedo) when a pore becomes completely blocked
burns injury to tissues caused by heat contact
first-degree burns superficial epidermal lesions, erythema, hyperesthesia, and no blisters (sunburn)
second-degree burns (partial thickness burn injury) epidermal and dermal lesions, erythema, blisters, and hyperesthesia
third-degree burns (full-thickness burn injury) epidermis and dermis are destroyed (necrosis of skin) and subcutaneous layer is damaged, leaving charred, white tissue
cellulitis disffuse, acute infection of the skin marked by local heat, redness, pain and swelling
eczema inflammatory skin disease with erythematous, papulovesicular lesions
exanthematous viral diseases rash (exanthem) of the skin due to a viral infection
gangrene death of tissue associated with loss of blood supply
impetigo bacterial inflammatory skin disease characterized by vesicles, pustules, and crusted-over lesions
psoriasis chronic, recurrent dermatosis marked by itchy, scaly, red plaques covered by silvery gray scales
scabies contagious, parasitic infection of the skin with intense pruritus
scleroderma chronic progressive disease of the skin and internal organs with hardening and shrinking of connective tissue
systemic lupus erythematosus (SLE) chronic autoimmune inflammatory disease of collagen in skin,joints, and internal organs
discoid lupus erythematosus (DLE) photosensative, scaling, plaque-like superficial eruption of the skin confined to the face, scalp, ears, chest, arms, and back, which heals with scarring
tinea infection of the skin caused by a fungus
tinea corporis ringworm
tinea pedis athletes foot
tinea capitis on scalp
tinea barbae skin under beard
vitiligo loss of pigment (depigmentation) in areas of the skin (milk-white patches)
callus increased growth of cells in the keratin layer of the epidermis caused by pressure or friction
keloid hypertrophied, thickened scar developing after trauma or surgical incision.
keratosis thickened and rough lesion of the epidermis: associated with aging or skin damage
actinic keratosis caused by long-term UV light exposure and is a precancerous lesion
seborrheic keratosis overgrowth of the upper epidermis and is dark in color
leukoplakia white, thickened patches on mucous membrane tissue of the tongue or cheek
nevus, nevi pigmented lesion of the skin (moles)
dysplastic nevi moles that have atypical cells and may progress to form a type of skin cancer
verruca epidermal growth (wart) caused by a virus
verruca vulgaris common wart
plantar warts verrucae; occur on the soles of feet, juvenile warts occur on the hands and face of children and veneral warts occur on genitals
basal cell carcinoma malignant tumor of the basal cell layer of the epidermis
squamous cell carcinoma malignant tumor of the squamous epilithial cells in the epidermis
actinic keratoses pre-malignant , sun-related, lesions in people with sun-damaged skin
malignant melanoma cancerous growth composed of melanocytes
kaposi sarcoma malignant, vascular, neoplastic growth characterized by cutaneous nodules
bacterial analyses samples of skin are examined for presence of microorganisms
exudate fluid that accumulates
fungal tests scrapings from skin lesions, hair specimens, or nail clippings are sent to a laboratory for culture and microscopic examination.
cryosurgery use of subfreezing temperature via liquid nitrogen application to destroy tissue
crettage use of a sharp dermal curette to screap away a skin lesion
electrodesiccation tissue is destroyed by burning with an electric spark
Mohs micrographic surgery Thin layers of malignant skin lesions are removed and exained microscopically by a pathologist
punch biopsy a surgical instrument removes a core of tissue by rotation of its sharp, circular edge.
shave biopsy tissue is excised using a cut parallel to the surface of the surrounding skin
skin test substances are injected intradermally or applied to the skin, and results are observed
Created by: zombiewho