102N.9 Skin Theory Flashcards
Dermatology
The study of skin, it’s structure, functions, and diseases
Dermatologist
Medical skin specialist
Integumentary system
The skin and its layers, including nails, hair, and glands
SHAPES
The functions of skin: sensation, heat regulation, absorption, protection, excretion, sectretion
Dermis
Inner layer of skin; made up of primarily collagen and elastin, with sebaceous glands, sudoriferous glands and hair follicles; contains nerve fibers that sense touch, pressure, and pain; also called dermal layer or living layer
Subcutaneous
Located below dermis; made up or mostly adipose tissue and loose connective tissue and blood vessels
Keratin
Primary component of skin, nail, and hair cells; protein substance
Stratum corneum
Outermost, toughest layer of epidermis; protects skin moisture balance and provides barrier function
Stratum lucidum
Located on palms and soles only; helps corners layer protect what’s below it; makes skin thicker (callouses) for protection
Stratum grandulosum
Made of regularly shaped tiny granules; almost dead cells replace corneum and produce keratin into fibers
Stratum spinosum
Distributes melanin to other cells and identifies antigens; sometimes considered stratum basale
Stratum basale
Deepest level of epidermis; skin cell growth, melanin production, and transportation of cholesterol for moisturizatioj
Melanin
Gives color to skin; eumelanin is brown/ black and pheomelanin is red/yellow
Sudoriferous glands
Sweat glands
Sebaceous glands
Oil glands
