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Milady Chapter 7: Skin, Structure, Growth, & Nutrition
Terms in this set (49)
Acne (acne vulgaris)
Skin disorder characterized by chronic inflammation of the sebaceous glands from retained secretions & propionibacterium acnes (P. acnes) bacteria.
Arrector Pili Muscles (goose bumps)
Small, involuntary muscles in the base of the hair follicle that cause goose flesh, sometimes called goose bumps, & papillae.
Thickening of the skin caused by continued, repeated pressure on any part of the skin, especially the hands & feet.
Fibrous protien that gives the skin form & strength.
Hair follicle filled with keratin & sebum.
Small, cone-shaped elevation at the base of the hair follicles that fit into the hair bulb.
Physician who specializes in diseases & disorders of the skin, hair, & nails.
Medical branch of science that deals with the study of skin & its nature, structure, functions, diseases, & treatment.
Underlying or inner layer of the skin.
Protein base similar to collagen that forms elastic tissue.
The top of the papillary layer where it joins the epidermis.
Outermost & thinnest layer of the skin, it is made up of five layers: stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, & stratum germinativum.
A specialist in the cleansing, beautification, & preservation of the health of skin on the entire body, including the face & neck.
A type of melanin that is dark brown or black in color.
Fibrous protein of cells that is also the principal component of hair & nails.
Tiny grains of pigment (coloring matter) that are produced by melanocytes & deposited into cells in the stratum germinativum layer of the epidermis & in the papillary layers of the dermis.
Cells that produce the dark skin pigment called melanin.
Motor Nerve Fibers
Fibers of the motor nerves that are distributed to the arrector pili muscles attached to hair follicles. Motor nerves carry impulses from the brain to the muscles.
Outer layer of the dermis, directly beneath the epidermis.
Small elevation on the skin that contains no fluid but may develop pus.
A type of melanin that is red to yellow in color.
Propionibacterium acnes (P. Acnes)
Raised, inflamed Papule with a white or yellow center containing pus in the top of the lesion referred to as the head of the pimple.
Deeper layer of the dermis that supplies the skin with oxygen & nutrients; contains fat cells, blood vessels, sudoriferous (sweat glands), hair follicles, lymph vessels, Arrector pili muscles, sebaceous (oil) glands, & nerve endings.
Sebaceous glands (oil glands)
Glands connected to hair follicles. Sebum is the fatty or oily secretion of the sebaceous glands.
A fatty or oily secretion that lubricates the skin & preserves the softness of the hair.
Secretory nerve fibers
Fibers of the secretory nerve that are distributed to the sudoriferous glands & sebaceous glands. Secretory nerves which are part of the automatic nervous (ANS) regulate the excretion of perspiration from the sweat glands & control the flow of sebum to the surface of the skin.
Sensory nerve fibers
Fibers of the sensory nerves that react to heat, cold, touch, pressure, & pain. Sensory receptors that send messages to the brain.
Stratum corneum (horny layer)
Outer layer of the epidermis.
Stratum germinativum (basal cell layer)
Deepest, live layer of the epidermis that produces new epidermal skin cells & is responsible for growth.
Stratum granulosum (granular layer)
Layer of the epidermis composed of cells that look like granules & are filled with keratin; replaces cells shed from the stratum corneum.
clear, transparent layer of the epidermis under the stratum corneum.
The spiny layer just above the stratum germinativum layer.
subcutaneous tissue (adipose or subcutis tissue)
Fatty tissue found below the dermis that gives smoothness & contour to the body, contains fat for use as energy & also acts as a protective cushion for the outer skin.
Sudoriferous glands (sweat glands)
Excrete perspiration & detoxify the body by excreting excess salt & unwanted chemicals.
Small epidermal structures with nerve endings that are sensitive to touch & pressure.
Supports overall health of the skin; aids in the health, function, & repair of skin cells; has been shown to improve skins elasticity & thickness.
Important substance needed for proper repair of the skin & tissues; promotes the production of collagen in the skins dermal tissues; aids in & promotes the skins healing process.
Enables the body to properly absorb & use calcium, the element needed for proper development & maintenance. Also promotes rapid healing of the skin.
Helps protect the skin from the harmful effects of the suns UV light.
The largest organ in the body.
3,000 square inches, 6 to 9 lbs
If the skin of an average adult were stretched out, it would cover over__ & weigh__.
Healthy skin is slightly.
Fats produced by the skin to help make the stratum corneum a protective, water resistant layer.
Supplies nutrients & oxygen to the skin.
Molecules from food, such as protein, carbohydrates, & fats. Necessary for cell life, repair, & growth.
Wrinkles & sagging
The result of collagen fibers losing their strength.
Keeping a healthy level of water in the body.
Coiled base of the sudoriferous (sweat) gland.
THIS SET IS OFTEN IN FOLDERS WITH...
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