Back to AI Flashcard MakerAnatomy and Physiology /Hair Chemistry: Ch 03 Skin Structure & Growth Vocabulary
Hair Chemistry: Ch 03 Skin Structure & Growth Vocabulary
This deck covers key vocabulary related to the structure and growth of skin, including terms related to skin layers, functions, and associated structures.
small, involuntary muscles in the base of the hair follicle that cause goosebumps
arrector pilli muscles
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Key Terms
Term
Definition
small, involuntary muscles in the base of the hair follicle that cause goosebumps
arrector pilli muscles
complex of lipids that keep the skin moist by preventing water evaporation and guards against irritants penetrating the skin surface; and to help regulate the skin’s pH
barrier function
sunscreen product that has been shown to protect from burning, skin cancer, and premature aging; protects against both UVA and UVB radiation from the sun
broad-spectrum sunscreen
fibrous, connective tissue made from protein; that gives the skin form and strength
collagen
membranes of ridges and grooves that attach to the epidermis
dermal papillae
physician who specializes in diseases and disorders of the skin, hair, and nails
dermatologist
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| Term | Definition |
|---|---|
small, involuntary muscles in the base of the hair follicle that cause goosebumps | arrector pilli muscles |
complex of lipids that keep the skin moist by preventing water evaporation and guards against irritants penetrating the skin surface; and to help regulate the skin’s pH | barrier function |
sunscreen product that has been shown to protect from burning, skin cancer, and premature aging; protects against both UVA and UVB radiation from the sun | broad-spectrum sunscreen |
fibrous, connective tissue made from protein; that gives the skin form and strength | collagen |
membranes of ridges and grooves that attach to the epidermis | dermal papillae |
physician who specializes in diseases and disorders of the skin, hair, and nails | dermatologist |
medical branch of science that deals with the study of skin and its nature, structure, functions, diseases, and treatment | dermatology |
also know as derma, corium, cutis, or true skin; underlying or inner layer of the skin | dermis |
protein base similar to collagen that forms elastic tissue | elastin |
top of the papillary layer where it joins the epidermis | dermal-epidermal junction |
outermost and thinnest layer of the skin, made up of five layers: stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum germinativum | epidermis |
type of melanin that is dark brown to black in color | eumelanin |
cone-shaped elevations at the base of the follicle that fit into the hair bulb; papillae are filled with tissue that contains the blood vessels and cells necessary for hair growth and follicle nourishment | hair papillae |
fibrous protein of cells that is also the principal component of skin, hair and nails | keratin |
tiny grains of pigment (coloring matter) produced by melanocytes deposited into cells in the stratum germinativum layer of the epidermis and papillary layers of the dermis | melanin |
cells that produce the dark skin pigment called melanin | melanocytes |
fibers of the motor nerves that are distributed to the arrector pilli muscles attached to hair follicles; carry impulses from the brain to the muscles | motor nerve fibers |
type of melanin that is red to yellow in color | pheomelanin |
deeper layer of the dermis that supplies the skin with oxygen and nutrients | reticular layer |
also known as oil glands; glands connected to hair follicles; secretes sebum | sebaceous glands |
fatty or oily secretion that lubricated the skin and preserves the softness of the hair | sebum |
coiled base of the sudoriferous (sweat) gland | secretory coil |
regulate the excretion of perspiration from the sweat glands and control the flow of sebum to the surface of the skin | secretory nerve fibers |
fibers of the sensory nerves that react to heat, cold, touch, pressure, and pain | sensory nerve fibers |
also known as horny layer, outermost layer of the epidermis | stratum corneum |
commonly called the basal cell layer; deepest, live layer of the epidermis that produces skin cells and is responsible for growth | stratum germinativum |
also known as the granular layer; layer of the epidermis composed of cells filled with keratin that resemble granules | stratum granulosum |
also known as the spiny layer; layer of the epidermis just above the stratum germinativum (basal) layer | stratum spinosum |
also known as the hypodermis or superficial fascia; consists of subcutaneous (fat) tissue located beneath the dermis | subcutaneous layer |
also known as adipose or subcutis tissue; fatty tissue found below the dermis that gives smoothness and contour to the body, contains fats for energy, and acts as a protective cushion for the skin | subcutaneous tissue |
also known as sweat glands; excrete perspiration and detoxify the body by excreting excess salt and unwanted chemicals | sudoriferous glands |
also known as sudoriferous glands; excrete perspiration and detoxify the body by excreting excess salt and unwanted chemicals | sweat glands |
small epidermal structures with nerve endings that are sensitive to touch and pressure | tactile corpuscles |
outer layer of the dermis, directly beneath the epidermis | papillary layer |
clear, transparent layer of the epidermis under the stratum corneum | stratum lucidum |