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Terms and Definition
Terms and Definitions
| Term | Definition |
|---|---|
| Acne vulgaris | commonly known as pimples, acne occurs when the skin pores clog with oil or bacteria |
| Alopecia | partial or complete absence of hair from body areas where it normally grows; baldness |
| Antiseptics | substances that slow or stop microorganism growth of surfaces such as skin |
| Comedones | blackheads; plugs of keratin and sebum in hair follicles blackened at the surface |
| Dermis | a thick layer of connective tissue that contains collagen |
| Eczema | a condition in which patches of skin become rough and inflamed |
| Emollient | a preparation that softens the skin |
| Epidermis | the outermost skin layer composed of the stratum corneum, or horny layer, the keratinocytes (squamous cells), and the basal layer. It also contains melanin, a pigment that contributes to skin and hair color |
| Eschar | a slough produced by a thermal burn, by application of a corrosive, or by gangrene |
| Exfoliation | the peeling off of dead skin |
| Head louse | a louse that infests the scalp and hair of the human head |
| Hirsutism | abnormal growth of hair on a person's face and body |
| Hypodermis | subcutaneous tissue |
| Keratolytics | drugs that cause shedding of the outer layer of the skin |
| Melanin | a dark brown to black pigment found in the hair, skin, and iris of the eye |
| Metastasize | with regard to cancer, to spread from the place of origin as a primary tumor to distant locations in the body |
| Nodules | small swellings or aggregations of cells in the body |
| Onychomycosis | a fungal infection of the fingernails or toenails |
| Papules | small, raised, solid pimples on the skin |
| Perspiration | the process of sweating |
| Pruritus | itching |
| Pustules | small blisters or pimples on the skin containing pus |
| Sebaceous glands | skin glands responsible for the secretion of oil called sebum |
| Seborrhea | excessive discharge of sebum from the sebaceous glands |
| Sebum | an oily/waxy substance that lubricates the skin and retains water to provide moisture |
| Subcutaneous layer | the deepest layer of the skin, consisting of fat cells and collagen; it protects the body and conserves heat |
| Sweat glands | glands in the dermis that are activated by an increase in body temperature to cool the body |
| Urticaria | red welts that arise on the surface of the skin; they are often attributable to an allergic reaction but may have nonallergic causes; also known as hives |
| Xerosis | abnormal dryness of the skin, eyes, or mucous membranes |
| Acne | the occurrence of inflamed or infected sebaceous glands in the skin; in particular, a condition characterized by red pimples on the face |
| Allergy | A condition in which the immune system reacts abnormally to a foreign substance. |
| Blister | a small bubble on the skin filled with serum and caused by friction, burning, or other damage. |
| Candidiasis | A fungal infection typically on the skin or mucous membranes caused by candida. |
| Cyst | An abnormal, usually noncancerous growth filled with liquid or a semisolid substance, sometimes causing pain. |
| Decubitus Ulcer | Damage to an area of the skin caused by constant pressure on the area for a long time |
| Dermatitis | a common condition that has many causes and occurs in many forms. It usually involves itchy, dry skin or a rash on swollen, reddened skin. |
| Fungus | A single-celled or multicellular organism |
| Mycoses | a disease caused by infection with a fungus, such as ringworm or thrush |
| Petechiae | a small red or purple spot caused by bleeding into the skin. |
| Psoriasis | a skin disease marked by red, itchy, scaly patches. |
| Ringworm | a contagious itching skin disease occurring in small circular patches, caused by any of a number of fungi and affecting chiefly the scalp or the feet. |
| Rosacea | a condition in which certain facial blood vessels enlarge, giving the cheeks and nose a flushed appearance. |
| Scabies | a contagious skin disease marked by itching and small raised red spots, caused by the itch mite. |
| Tinea Capitis | a fungal infection of the scalp and hair shafts. |
| Tinea Manus | a fungal infection of the hands |
| Tinea Pedis | a fungal infection affecting the skin between the toes. |
| tinea unguium | A nail fungus causing thickened, brittle, crumbly, or ragged nails. |
| wheal | A raised, itchy (pruritic) area of skin that is sometimes an overt sign of allergy |
Created by:
Delilah778
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