MIDTERMS: Integ: Burns & conditions Flashcards
(70 cards)
The outermost, avascular layer of the skin exposed to the environment. It provides waterproofing and protection from infection.
epidermis
Name and describe the layers of the epidermis.
Corneum: Horny layer, waterproofs and protects from infection.
Lucidum: Clear layer, found on palms and soles.
Granulosum: Retains water and regulates heat.
Spinosum: Protects basale layer.
Basale: Regeneration layer, contains melanocytes for skin pigmentation.
: Large blisters (raised >5mm), associated with grade II pressure ulcers, and can follow a dermatome.
bullae
: A small, fluid-filled blister (<5mm) that can be transferred through touch.
vesicle
The “true skin” layer, 20-30x thicker than the epidermis. Contains blood vessels, lymphatics, collagen, elastic fibers, and appendages like sweat glands and hair follicles.
dermis
Superficial, linear erosion of the skin caused by scratching, leading to a break in the epidermis and potential scarring.
excoriation
Thickened, rough skin due to repeated rubbing, often seen in conditions like eczema.
lichenification
A flat, discolored skin area that is darker than the surrounding skin.
macule
A firm, doughy skin elevation (5-20mm), circumscribed and solid.
nodule
A small raised lesion on the skin, typically <5mm.
papule
Abnormal keratinization leading to scale-like skin.
dyskeratosis
Loss of nail integrity, leading to brittle, opaque nails, often due to nutritional deficiencies or pressure.
onycholysis
Superficial loss of the epidermis, often healing without scarring.
erosion
What is a plaque in dermatology?
A flat-topped, scale-like lesion >5mm that peels off, resembling a scab.
What is a scale in terms of skin?
Superficial dead epidermal cells that peel off, giving a scaly appearance.
A pus-filled, raised skin lesion commonly seen in acne, boils, and folliculitis.
pustule
An irregular, edematous area of skin, often itchy and red, commonly seen in allergies or insect bites.
wheal
Define exocytosis in skin pathology.
Invasion of inflammatory cells into the epidermis.
Destruction of intercellular connections within the epidermis.
acantholysis
Loss of epidermis extending into the dermis or deeper, often healing with scarring.
ulceration
What is vacuolization?
Damage at the basal cell membrane level.
What is hyperkeratosis?
Abnormal thickening of the stratum corneum with excessive keratin.
Hyperplasia of the dermal papillae, causing a loss of skin integrity.
papillomatosis
Hyperpigmentation caused by constant rubbing, pressure, or shearing.
acanthosis