Chapter 7 Flashcards
Skin disorder characterized by chronic inflammation of the sebaceous glands from retained secretions
Acne
Small involuntary muscles in the base of the hair follicles that cause goose bumps
Arrector pili muscles
Thickening of the skin caused by continued repeated pressure on the skin
Callus
Fibrous protein that gives skin form and strength
Collagen
A blackhead; filled with keratin and sebum
Comedo
Small cone shaped elevations in the base of the hair follicles that fit into the hair bulb
Dermal papillae
Physician who specializes in diseases and disorders of the skin, hair, and nails
Dermatologist
Study of skin and it’s nature, structure, functions, diseases, and treatment
Dermatology
Also known as derma, corium, cutis, or true skin; underlying or inner layer of skin
Dermis
Protein base similar to collagen that forms elastic tissue
Elastin
Top of the papillary layer where it joins the epidermis
Epidermal-dermal junction
Outermost and thinnest layer of skin that’s made up of five layers; stratum corneum, germinativium, lucidum, granulosum, spinosum
Epidermis
Specialist in the cleansing, beautification, and preservation of the skin/entire body
Esthetician
Melanin that is dark brown to black in color
Eumelanin
Fibrous protein of cells: principal component of hair & nails
Keratin
Grains of pigment produced by melanocytes and deposited into cells in the stratum germinativium layer of the epidermis and in the papillary layers of the dermis; pheomelanin & eumelanin
Melanin
Cells that produce the dark skin pigment called melanin
Melanocytes
Fibers of the motor nerves that are distributed to arrector pili muscles attached to hair follicles; carry impulses from the brain to the muscles
Motor nerve fibers
Outer layer of dermis directly beneath the epidermis
Papillary layer
Also know as pimple, elevation containing fluid or pus
Papule
Melanin that is red to yellow in color
Pheomelanin
P. Acnes, acne bacteria
Propionibacterium acnes
Raised inflamed papule with white or yellow center
Pustule
Deeper layer of dermis that supplies the skin oxygen and nutrients.
Reticular layer
Oil glands; glands connected to hair follicles, produced sebum
Sebaceous glands
Fatty or oily secretion that lubricates the skin and preserved softness of the hair
Sebum
Coiled base of the sudoriferous (sweat) gland
Secretory coil
Fibers of the secretory nerve that are distributed to the sudoriferous glands and sebaceous glands; secretory nerves=autonomic nervous system
Secretory nerve fiber
Fibers of the sensory nerves that react to heat, cold, touch, pressure, and pain
Sensory nerve fibers
Horny layer, outer layer of the epidermis
Stratum germinativium
Granular layer, layer of epidermis composed of cells that look like granules and are filled with keratin
Stratum granulosum
Clear, transparent layer of the epidermis under the stratum corneum
Stratum lucidum
Spiny layer just above the stratum germinativium
Stratum spinosum
Adipose or subcutis tissue; fatty tissue found below the dermis that gives smoothness and contour the the body
Subcutaneous tissue
Small epidermal structures with nerve endings that are sensitive to touch and pressure
Tactile corpuscles
Sweat glands
Sudoriferous glands
Supports the overall health of the skin
Vitamin A
Substance needed for proper repair of the skin and tissues
Vitamin C
Enables the body to properly absorb and use calcium
Vitamin D
Helps protect the skin from the harmful effects of the suns UV light
Vitamin E
