Skin
Structure + Growth
Structure + Growth
Define: Keratin
Fibrous protein of cells that is also the principle component of skin, hair, and nails
Define: Humectants
Substances that absorb moisture or promote moisture retention
Define: Kanekalon
Synthetic fiber used to make hair extensions; highly heat resistant and made specifically for braided styles
Define: Lunula
Visible part of the matrix that extends from underneath the living skin; whitish half-moon shape at base of nail
Define: Cure
To transform from a liquid to a solid
__________ is a medical branch of science that deals with the study of the skin and its nature, structure, functions, diseases, and treatment.
Dermatology
In most shampoos, __________ is usually the first ingredient listed, which indicates that it is the main ingredient.
Water
__________ are also known as inverted braids or French braids.
Invisible braids
What is the water content percentage of a healthy nail?
15% to 25%
Bulbs of a curing lamp must emit __________ light at the proper intensity to cure light-cured gels.
Violet
__________ is a type of melanin that is red to yellow in color.
Pheomelanin
What services would you need a chemical draping for?
Color, lightener, perm, or relaxer.
A __________ consists of flat leather pads with very close, fine teeth that sandwich human hair extensions.
Drawing board
The __________ is the section of living skin that supports the nail plate as it extends toward the free edge.
Nail bed
A nail cleanser is used to remove what from the nail plate prior to gel application?
Surface moisture and oil
Define: Epidermis
Outermost and thinnest layer of skin, made up of 5 layers
Define: Malassezia
Fungus that causes dandruff
Define: Hackle
Board of fine upright nails through which human hair extensions are combed; used for detangling or blending colors and highlights
Define: Bed Epithelium
Thin layer of tissue between the nail plate and nail bed
Define: Exothermic reaction
Chemical reaction that releases heat
The __________ is the deeper layer of the dermis that supplies the skin with oxygen and nutrients.
Reticular Layer
In the context of a scalp massage, effleurage uses what two types of movements?
Stroking and circular hand movements
__________ are created with prefabricated synthetic hair that is added on to individual braids or cornrows.
Faux locs
The __________ is part of the natural nail that contains nerves, blood vessels, and lymph to nourish cells that differentiate and become keratinized to form the nail plate.
Matrix
An __________ is a thick, gel-like, sticky acrylate between a liquid and a solid.
Oligomer