Integumentary System
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| cutaneous | Pertaining to the skin (from Latin cutis, meaning “skin”)
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| derma | Skin (from Greek)
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| dermis | The layer of the skin between the epidermis and the subcutaneous tissue; the true skin or corium
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| epidermis | The outermost layer of the skin (from epi-, meaning “upon or over” and derm, meaning “skin”)
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| hair | A thread-like keratinized outgrowth from the skin (root: trich/o)
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| hair follicle | The sheath in which a hair develops
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| integumentary system | The skin and its associated glands, hair, and nails
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| keratin | A protein that thickens and toughens the skin and makes up hair and nails (root: kerat/o)
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| melanin | A dark pigment that gives color to the hair and skin and protects the skin against the sun’s radiation (root: melan/o)
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| nail | A plate-like keratinized outgrowth of the skin that covers the dorsal surface of the terminal phalanges (root: onych/o)
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| sebaceous gland | A skin gland that produces sebum; usually associated with a hair follicle (root: seb/o)
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| sebum | A fatty secretion of the sebaceous glands that lubricates the hair and skin (root: seb/o)
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| skin | The tissue that covers the body; the integument (roots: derm/o, dermat/o)
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| subcutaneous layer | The layer of tissue beneath the skin; also called the hypodermis
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| atopic dermatitis | Hereditary, allergic, chronic skin inflammation with pruritus (itching); eczema
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| basal cell carcinoma | An epithelial tumor that rarely metastasizes and has a high cure rate with surgical removal
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| cicatrization | The process of scar formation; a scar is a cicatrix (SIK-ah-triks)
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| debridement | Removal of dead or damaged tissue, as from a wound
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| dehiscence | Splitting or bursting, as when the layers of a wound separate
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| dermatitis | Inflammation of the skin, often associated with redness and itching; may be caused by allergy, irritants (contact dermatitis), or a variety of diseases
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| dermatology | Study of the skin and diseases of the skin
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| dermatome | Instrument for cutting thin skin sections for grafting
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| eczema | A general term for skin inflammation with redness, lesions, and itching; atopic dermatitis
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| erythema | Diffuse redness of the skin
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| escharotomy | Removal of scab tissue resulting from burns or other skin injuries; a scab or crust is an eschar (ES-kar)
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| evisceration | Protrusion of internal organs (viscera) through an opening, as through a wound
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| exudate | Material, which may include fluid, cells, pus, or blood, that escapes from damaged tissue
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| Kaposi sarcoma | Cancerous lesion of the skin and other tissues, seen most often in patients with AIDS
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| keloid | A raised, thickened scar caused by tissue overgrowth during scar formation
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| lupus erythematosus | 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
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| melanoma | A metastasizing pigmented skin tumor that arises from melanocytes; malignant melanoma
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| pemphigus | An autoimmune disease of the skin characterized by sudden, intermittent formation of bullae (blisters); may be fatal if untreated
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| pressure ulcer | An ulcer caused by pressure to an area of the body, as from a bed or chair; decubitus (de-KU-bih-tus) ulcer, bedsore, pressure sore
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| pruritus | Severe itching
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| psoriasis | A chronic hereditary dermatitis with red lesions covered by silvery scales
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| rule of nines | A method for estimating the extent of body surface area involved in a burn by assigning percentages in multiples of nine to various body regions
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| scleroderma | A chronic disease that is characterized by thickening and tightening of the skin and that often involves internal organs in a form called progressive systemic sclerosis (PSS)
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| squamous cell carcinoma | An epidermal cancer that may invade deeper tissues but tends not to metastasize
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