Integumentary System Flashcards
Epidermis
Superficial layer of skin
Cutaneous
Pertaining to the skin
Derma
Skin
Dermis
Layer of skin between epidermis and subcutaneous tissue, the true skin or corium
Hair
Thread-like keratinized outgrowth from the skin
Hair Follicle
The sheath in which a hair develops
Keratin
A protein that thickens and toughens the skin and makes up hair and nails
Melanin
A dark pigment that gives color to the hair and skin and protects the skin against the sun’s radiation
Nail
A plate like keratinized outgrowth of the skin that covers the dorsal surface of the terminal phalanges
Sebaceous gland
A skin gland that produces sebum, usually associated with a hair follicle
Sebum
A fatty secretion of the sebaceous glands that lubricates the hair and skin
Skin
The tissue that covers the body; the integument
Subcutaneous layer
The layer of tissue beneath the skin, also called the hypodermis
Sweat gland
A gland that releases a watery fluid (perspiration) to the skin surface in order to cool the body. Certain sweat glands (mainly the armpits and groin) release secreations with some cellular material in response to stress. A sudoriferous gland.
Bulla
Raised, fluid filled lesion larger than a vesicle.
Fissure
Crack or break in the skin
Macule
Flat, colored spot less than 1cm in size. (Larger spot is called a patch)
Nodule
Solid, raised lesion larger than a papule; often indictive of a systemic disease.
Papule
Firm, circular raised surface lesion less than 1cm in size such as a pimple
Plaque
Superficial, flat, or slightly raised differentiated patch more than 1 cm in diameter
Pustule
Raised pus-filled lesion; often a hair follicle or sweat pore
Ulcer
Lesion resulting from destruction of the skin and perhaps subcutaneous tissue
Vesicle
Fluid-filled, raised lesion less than 5mm in size; a blister or bleb
Wheal
Smooth, rounded, slightly raised area often associated with itching; seen in urticaria (hives) such as that resulting from an allergy
Atopic dermatitis
Heredity, allergic, chronic skin inflamation with pruritus (itching); eczema
Basal cell carcinoma
An epithelial tumor that rarely metastasizes and has a high cure rate with surgical removal
Cicatrization
The process of scar formation; a scar is a cicatrix
Debridement
Removal of dead or damaged tissue, as from a wound
Dehiscence
Splitting or bursting, as when the layers of a wound separate
Dermatitis
Inflamation of the skin, often associated with reness and itching; may be caused by allergy, irritation (contact dermatitis), or a variety of diseases
Dermatology
Study of the skin and diseases of the skin
Dermatome
Instrument for cutting thin skin sections for grafting
Eczema
A general term for skin inflamation with redness, lesions, and itching; atopic dermatitis
Erythema
Diffuse redness of the skin
Eschartomy
Removal of scab tissue resulting from burns or other skin injuries, a scab or crust is an eschar
Evisceration
Protrusion of internal organs (viscera) through an opening, as through a wound
Exudate
Material, which may include fluid, cells, pus, or blood, that escapes from damaged tissue.
Kaposi Sarcoma
Cancerous lesion of the skin and other tissues seen most often in patients with AIDS
Keloid
A raised thickened scar caused by tissue overgrowth during scar formation
Lupus erythematosus (LE)
A chronic, inflammatory, autoimmune disease of connective tissue that often involves the skin; types include the more widespread systemic lupus erythematosus (SLE) and a discoid form (DLE) that involves only the skin
Melanoma
A metastasizing pigmented skin tumor that arises from melanocytes; malignant melanoma
Pemphigus
An autoimmune disease of the skin characterized by sudden, intermittent formation of bullae (blisters); may be fatal if left untreated
Pressure Ulcer
An ulcer caused by pressure to an area of the body, as from a bed or chair; decubitus ulcer, bedsore, pressure sore
Pruritus
Severe itching
Psoriasis
A chronic hereditary dermatitis with red lesions covered by silvery scales