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Skin Theory
112.1
Term | Definition |
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Epidermis | Outermost layer of the skin, also referred to as cuticle or scarf skin |
Stratum Basale | Lowest or deepest level of the epidermis where mitosis or cell division takes place |
Stratum Spinosum | Layer of the epidermis just above the stratum germinativum. Sometimes considered part of the stratum germinativum, include cells that have absorbed melanin to distribute pigmentation to other cells |
Stratum Granulosum, | Layer of the epidermis below the stratum lucidum and above the stratum spinosum; in this layer the cells become more regularly shaped and look like many tiny granules |
Stratum Lucidum | Layer of the epidermis just below the stratum corneum, it is located on the palms of the hands and the soles of the feet where there are no hair follicles |
Stratum Corneum | Uppermost layer of the epidermis; the toughest layer composed of keratin protein cells that are continually shed and continually replaced by new cells from below |
Dermal | Underlying or inner layer of the skin also called dermis, derma, corium, cutis or true skin; made up of connective tissues; sudoriferous glands, sebaceous glands, and a major portion of each hair follicle |
Subcutaneous | Adipose ( fatty)tissue below the dermis layer of the skin; protective cushion for the skin acts as a shock absorber to protect the bones and help support the delicate structures such as blood vessels and nerve endings |
Sebaceous Glands | oil glands partially controlled by the nervous system; sac like glands that are attached to hair follicles result in oily skin when an over abundance of sebum is produced by the gland |
Sudoriferous Glands | Controlled by the nervous system of the body, each gland consists of a coiled base and tube like duct opening on the surface of the skin to form sweat poor |
Sun Protection Factor (SPF) | Rating system for Sunscreen to determine how long one can stay out in the Sun without burning |
Dermatology | Study of the skin, its structure, functions, diseases, and treatment |
Esthetics | Known as the process of cleansing, toning, moisturizing, protecting and enhancing the skin |
Skin | The largest organ of the body that covers nearly 20 ft² of the body surface and protects it from invasion from outside particles |
Integumentary System | Consists of the skin and its layers |
Sensation | Feeling or perception generated by the nerve ending just under the outer layer of the skin that makes you aware of heat,cold, touch, pain, and pressure |
Reflex | the reaction to a sensation |
Heat Regulation | Skin's ability to help maintain the body's temperature |
Absorption | Skin's ability to permit substances like water and oxygen to pass through its tissues |
Protection | The skin's ability to shield the body from the direct impact of heat, cold, bacteria, and other aspects of the environment that could be detrimental to one's health |
Excretion | The skin's ability to eliminate sweat, salt, and wastes from the body therefore helping to remove toxins from the internal systems |
Dry Skin | Characterized by signs such as peeling and flaking; chaps easily and has a general all over taut feeling; has fewer blemishes and is not prone to acne |
Oily Skin | Condition that has an all over shiny look and/or rough texture with blackheads and enlarged pores |
Normal Skin | Characterized by a fresh and healthy color ,a firm moist and smooth texture, freedom from blackheads and blemishes and does not appear oily |
Combination Skin | Recognized by the shiny T zone( forehead, nose,and chin) ,the presence of a noticeable dryness in the cheek and jawline and hairline areas; blackheads and enlarged pores are often evident on the nose and chin |