Term
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Definition
-produce sebum
-are located in the dermal layer of the skin over the entire body, with the exception of the palms (hands), soles (feet), and lips
-oil-secreting gland in the dermis that is associated with hair follicles |
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Definition
-produce sweat
-are tiny, coiled glands found on almost all body surfaces (about 2 million in the body) |
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Definition
| oily secretion by sabaceous glands |
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Definition
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Definition
-a thin, cellular membrane layer; containing keratin
-outermost layer of skin |
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Definition
-dense, fiberous, connective tissue layer; containing collagen
-middle layer of the skin |
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Term
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Definition
| innermost layer of the skin thick, fat-containing tissue |
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Term
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Definition
| is the covering of both the internal and the external surfaces of the body |
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Term
| squamous epithelial cells |
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Definition
| flat and scale-like cells composing the epidermis |
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Term
| stratified squamous epithelium |
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Definition
| the outer layer of the skin, these cells are arranged in several layers (strata) to form this |
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Term
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Definition
-the deepest layer of skin
-(alive)
-it gives rise to all the epidermal cells |
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Definition
-in their movement toward the most superficial layer of the epidermis, the cells flatten, shrink, lose their nuclei, and die
-(superficial) |
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Term
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Definition
-after the cells die, they become filled with a hard protein material
-(horny) cells
-a hair fiber is composed of a tightly fused meshwork of cells filled with the hard protein
-waterproofs |
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Term
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Definition
-the basal layer of the epidermis contains these special cells
-everyone has about the same number of these cells
-produces color
-are located at the root of the hair follicle, and they donate the melanin pigment to the cells of the hair fiber |
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Term
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Definition
| melanocytes form and contain a brown-black pigment that is transferred to other epidermal cells and gives color to the skin |
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Term
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Definition
-individuals who are incapable of forming melanin
-skin and hair are white
-person with skin deficient in pigment (melanin) |
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Term
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Definition
-dermis is composed of interwoven elastic
-is fibrous protein material found in bone, cartilage, tendons, and ligaments, as well as in the skin |
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Term
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Definition
-overstretching of the skin with weight gain may break the elestic fibers, resulting in linear markings
-"stretch marks" |
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Term
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Definition
| fat cells are predominant in the subcutaneous layer and they manufacture and store large quantities of fat |
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Term
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Definition
| deep-lying cells in the hair root produce keratinized cells that move upward through (sacs within each hair fiber grows) |
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Term
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Definition
| is a semilunar (half-moon-shaped) whitish region at the base of the nail plate |
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Term
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Definition
| a narrow band of epidermis (layer of keratin), is at the base and sides of the nail plate |
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Term
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Definition
| is the soft tissue surrounding the nail border |
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Definition
-is the loosening of the nail plate with separation from the nail bed
-it may occur with infection of the nail |
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-the most common type of sweat gland
-most numerous sweat-producing exocrine gland in the skin |
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Term
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Definition
| tiny opening on the surface |
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Term
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Definition
-secrete an odorless sweat, containing substances easily broken down by bacteria on the skin
-one the large dermal exocrine glands located in the axilla and genital areas |
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Definition
| the skin and its accessory structures such as nails and skin |
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Definition
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Definition
collection of dried serum and cellular debris
a scab is an example |
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Definition
| thick walled, closed sac or pouch containing fluid or semisolid material |
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Definition
-wearing away or loss of epidermis
-doesn't leave a scar |
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Term
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Definition
| groove or crack-like sore |
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Term
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Definition
| flat lesion measuring less than 1 cm in diameter |
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Definition
-solid, round or oval elevated lesion 1 cm or more in diameter
-larger |
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Definition
small (less than 1 cm in diameter), solid elevation of the skin
pimples are examples |
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Definition
| growth extending from the surface of mucous membrane |
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Definition
-papule containing pus
-punlent |
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Definition
| open sore on the skin or mucous membranes (deeper than an erosion) |
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Definition
| decubitus ulcers are caused by pressure that results from lying in one position |
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Definition
| small collection (papule) of clear fluid (serum): blister |
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Definition
-smooth, edematous (swollen) papule or plaque that is redder or paler than the surrounding skin
-allergic reaction (Hives) |
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Definition
| absence of hair from areas where it normally grows |
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Term
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Definition
| autoimmune disease in which hair falls out in patches without scarring or inflammation |
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Term
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Definition
| bluish-purplish mark (bruise) on the skin |
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Term
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Definition
| small, pinpoint hemorrhage |
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Term
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Definition
-ecchymoses and petechiae are forms of this
-bleeding into the skin |
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Definition
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Definition
-acute allergic reaction in which red, round, wheals develop on the skin
-for rash |
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Definition
| chronic papular and pustular eruption of the skin with increased production of sebum |
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Term
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Definition
| caused by the buildup of sebum and keratin in the pores of the skin |
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Term
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Definition
blackhead
sebum plug partially blocking the pore |
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Definition
pore becomes completely blocked
closed comedo |
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Definition
| injury to tissues caused by heat contact |
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Term
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Definition
| superficial epidermal lesions, erythema, hyperesthesia, and no blisters |
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Term
| second-degree burns (partial-thickness burn injury) |
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Definition
| epidermis and dermal lesions, erythema, blisters, and hyperesthesia |
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Term
| third-degree burns (full-thickness burn injury) |
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Definition
| epidermis and dermis are destroyed (necrosis of skin) and subcutaneous layer is damaged, leaving charred, white tissue |
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Definition
-diffuse, acute infection of the skin marked by local heat, redness, pain and swelling
-due to bacterial infection |
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Definition
-inflammatory skin disease with erythematous, papulovesicular lesions
-due to allergies |
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Term
| exanthematous viral disease |
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Definition
| rash (exanthem) of the skin due to viral infection |
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Term
| examples of exanthematous viral disease |
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Definition
| rubella, rubeola, varicella |
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-death of tissue associated with loss of blood supply
-ischemia |
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Definition
| bacterial inflammatory skin disease characterized by vesicles, pustules, and crusted-over lesions |
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Term
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Definition
| contagious, usually is casued by staphylococci or stretococci |
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Term
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Definition
-chronic, recurrent dermatosis marked by itchy, scaly, red plaques covered by silvery gray scales
-treatment is palliative |
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Definition
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Definition
| contagious, parasitic infection of the skin with intense pruritus |
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Definition
-chronic progressive disease of the skin and internal organs with hardening and shrinking of connective tissue
-scar-like tissue forms in the skin, heart, lungs, kidneys, and esophagus |
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Term
| systemic lupus erythematosus (SLE) |
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Definition
-chronic autoimmune inflammatory disease of collagen in skin, joints, and internal organs
-kidneys affected the most |
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Term
| discoid lupus erythematosus (DLE) |
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Definition
| photosensitive, scaling, plaque-like, superficial eruption of the skin confined to the face, scalp, ears, chest, arms, and back, which heals with scarring |
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Definition
| infection of the skin caused by a fungus |
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Definition
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Definition
-loss of pigment (depigmentation) in areas of the skin (milk-white patches)
-leukoderma, autoimmune disease |
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Definition
| increased growth in cells in the keratin layer of the epidermis caused by pressure or friction |
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Definition
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Definition
| hypertrophied, thickened scar developing after trauma or surgical incision |
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Definition
| normal scar healed by a wound |
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Definition
| thickened and rough lesion of the epidermis; associated with aging or skin damage |
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Term
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Definition
| caused by long-term ultraviolet light exposure and is a precancerous lesion |
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Definition
-white, thickened patches on mucous membrane tissue of the tongue or cheek
-common in smokers |
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Term
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Definition
-pigmented lesion of the skin
-moles |
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Term
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Definition
| are moles that have atypical cells and may progress to form a type of skin cancer called melanoma(the deadliest type) |
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Definition
| erpidermal growth (wart) caused by a virus |
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Definition
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Definition
| occur on the soles of the feet |
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Definition
-malignant tumor of the basal cell layer of the epidermis
-it almost never metastasizes |
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Definition
| malignant tumor of the squamous epithelial cells in the epidermis |
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Definition
-cancerous growth composed of melanocytes
-worst |
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Definition
Asynmetry
Border
Color
Diameter
Evolution |
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Term
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Definition
| one half unlike the other half |
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Term
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Definition
| irregular or poorly circumscribed border |
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Definition
| varies from one area to another; shades of tan and brown, black, and sometimes white, red, or blue |
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Definition
| usually larger than 6 mm (same as a pencil eraser |
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Definition
| change in the lesion over time |
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Definition
-Malignant, vascular, neoplastic growth characterized by cutaneous nodules
-associated with AIDs and HIV |
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Term
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Definition
samples of skin are examined for presence of microorganisms
bacteria cultures |
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Term
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Definition
-scrapings from skin lesions, hair specimens, or nail clippings are sent to a laboratory for culture and microscopic examination
-may be treated with KOH(potassium hydroxide) |
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Term
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Definition
| use of subfreezing temperature via liquid nitrogen application to destroy tissue |
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Term
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Definition
| use of a sharp dermal curette to scrape away a skin lesion |
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Term
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Definition
| tissue is destroyed by burning with an electric spark |
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Term
| Mohs micrographic surgery |
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Definition
-thin layers of malignant tissue are removed, and each is examined under a microscope to check for adequate extent of the resection
-also known as microscopically controlled surgery
-treat basal cell carcinomas, squamous cell carcinomas |
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Term
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Definition
-suspected malignant skin lesions are removed and examined microscopically by a pathologist
-punch biopsy
-shave biopsy |
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Definition
-substances are injected intradermally or applied to the skin, and results are observed
-for TB and allergy test |
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Definition
purified protein derivative
*used in skin test for tuberculosis |
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Definition
| systemic lupus erythematosus |
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Definition
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Definition
| measules, mumps, and rubeola |
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| excessive sebum (oily secretion from sebaceous glands) |
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electricity burn
watch from smell of burning flesh |
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Definition
| pertaining to below the skin |
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Definition
| pertaining to above the skin |
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Definition
| inflammation of the skin (allergies) |
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Definition
| surgical repair of the skin (from skin burns) |
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| specialist who studies skin |
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breakdown of upper skin
to seperate |
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Definition
| condition of profuse sweating |
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Definition
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| without the condition of sweating |
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removal of fat tissue through suction
can cause bleeding to death |
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Definition
black cell
gives hair or skin color |
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Definition
*worst*
malignant skin tumor (usually black) |
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| fungal infection of the nails |
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Definition
| condition near the nail (ingrown nails) |
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Definition
| condition of fungal infections being planted |
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face lift
reconstructive plastic surgery for wrinkles |
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Definition
| condition of scale-like epithelium |
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| pertaining to below the nail |
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