Ch. 7 Skin Structure, Growth and Nutrition
Terms in this set (40)
Also Known as Acne vulgaris; skin disorder characterized by chronic inflammation of the sebaceous glands from retained secretions and propionibacterium acnes (P.acne) bacteria
Arrector pili muscles
Small Involuntary muscles in the base of the follicle that causes goose flesh, sometimes call goose bumps, and papillae.
Thickening of the skin caused by continued, repeated pressure on any part of the skin, especially the hands and feet.
Fibrous protein that gives the skin form and strength.
Comedo (plural: comedones)
also known as blackhead: hair follicle filled with keratin ans sebum
dermal papillae (singular Papilla)
Small, cone-shaped elevations at the base of the hair follicles that fit into the hair bulb.
Physician who specializes in diseases and disorders of the skin, hair, and nails.
Medical branch of science that deals with the study of skin and its nature, structure functions, diseases, and treatment.
Inner Layer of the skin AKA derma, corium, cutis or true skin
protein base similar to collagen that forms elastic tissue
The top of the papillary layer where it joins the epidermis
the outermost and thinnest layer of the skin; it is made up of five layers; stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum germinativum
A specialist in the cleansing, beautification, and preservation of the health of the skin on the entire body, including the face and neck
a type of melanin that is dark brown to black in color. People with dark-colored skin mostly produce eumelanin. There are two types of melanin the other is pheomelain
Fibrous protein of cells that is also the principal component of hair and nails.
tiny grains of pigment, coloring matter that are produced by melanocytes and deposited into cells in the stratum germinativum layer of the epidermis and in the papillary layers of the dermis. There are two types of melanin; phoemelanin, which is red to yellow in color, and eumelanin, which is dark brown to black
cells that produce the dark 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 many develop pus (a pimple)
The other type of melanin the is red to yellow in color
aka p-acne technical term for acne bacteria
raised imflamed papule with a white or yellow center containing pus in the top of the leiason referred to as the head of the pimple
Deeper layer of the dermis that supplies the skin with oxygen and nutrients; contains fat cells, blood vessels, sudoriferous (sweat glands), hair follicles. Sebum is the fatty or oily secretion of the sebaceous glands
also known as 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 and preserves the softness of the hair
coiled base of the sudoriferous (sweat gland)
Secretory nerve fibers
Fibers of the secretory nerve that are distributed to the sudoriferous glands & sebaceous glands. Secretory nerves, which are part of the autonomic nervous system (ANS), regulate the excretion of perspiration from the sweat glands and control the flow of sebum to the surface of the skin
Sensory nerve fiber
Fibers of the sensory nerves that react to heat, cold, touch, pressure, and pain. Sensory receptors that send messages to the brain
the outer layer of the epidermis aka the horny layer of the epidermis
the deepest live layer of the epidermis that produces new epidermal skin cells and is responsible for growth. aka basal cell layer
the layer of the epidermis composed of cells that look like granules and 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.
Fatty tissue found below the dermis that gives smoothness and contour to the body, contains fat for use as energy, and also acts as a protective cushion for the outer skin
Small epidermal structures with nerve endings that are sensitive to touch and pressure
Supports the overall health of the skin; aids in the health, function, and repair of skin cells; has been shown to improve the skin's elasticity and thickness.
An important substance nedded for proper repair of the skin and tissues; promotes the production of collagen in the skin's dermal tissues; aids in and promoters the skin's healing process
Enables the body to properly absorb and use calcium, the element needed for proper bone development and maintenance.
Helps protect the skin from the harmful effects of the sun's UV light
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