Oregon Barber License Exam Questions & Answers,
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Cuticle - (ANSWER)Outer most layer of the hair. It consists of a single,
overlapping layer of transparent, scale-like cells that resemble shingles on a roof.
It protects the inner cortex layer and contributes to 20% of overall strength of
hair.
The Cortex - (ANSWER)The middle layer of the hair. A fibrous protein core
formed by elongated cells containing melanin to pigment. Gives hair majority of
its strength and elasticity. A healthy Cortex contributes to %80 to the overall
strength of the hair. Contains melanin that determines hair color.
The Medulla - (ANSWER)The innermost layer of hair. Sometimes absent from hair
and doesn't play a role in hair coloring. composed of round cells.
Texture - (ANSWER)The diameter of an individual hair.
Density - (ANSWER)The number of hairs per square inch.
Porosity - (ANSWER)The hairs ability to absorb moisture.
Low porosity - (ANSWER)The cuticle is tight. The hair is resistant (difficult for
moisture or chemicals to penetrate. Thus, it requires longer processing time.
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Average porosity - (ANSWER)The cuticle is slightly raised. Hair is normal and
processes in an average amount of time.
High porosity - (ANSWER)The cuticle is lifted. The hair is overly porous and takes
color quickly (also fades quickly) Permed, colored, chemically relaxed and
straightened hair will have a high degree of porosity.
Mixed melanin - (ANSWER)A combination of natural hair color that contain both
pheomelanin and eumelanin.
Basal cell cercinoma - (ANSWER)Most common and least severe type of skin
cancer; often characterized by light or pearly nodules.
Bromhidrosis - (ANSWER)Foul-smelling perspiration, usually noticeable in the
armpits and the feet that is caused by Bacteria.
Bulla (plural bullae - (ANSWER)Large blister containing a watery fluid; similar to
vesicle but larger.
Chloasma - (ANSWER)Aka-Liver Spots; condition characterized by
hyperpigmentation on the skin in spots that are not elevated.
Closed Comedo - (ANSWER)Aka-White head; hair follicle is closed and not
exposed to the environment. Sebum remains a white or cream color and
comedone appears as a small bump just under the skin surface.
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Conjunctivitis - (ANSWER)Aka-Pink eye; common bacterial infection of the eyes.
Extremely contagious.
Contact dermatitis - (ANSWER)An inflammation of the skin caused by Having
contact with certain chemicals or substances. Many that are used in cosmetology.
Crust - (ANSWER)Dead cells form over a wound or blemish while it's healing; an
accumulation of sebum and pus, sometimes mixed with epidermal material.
Cyst - (ANSWER)Closed, abnormally developed that contains fluid, pus, semifluid,
or morbid matter above or below the skin.
Hair Root - (ANSWER)The part of the hair located below the surface of the
Epidermis.(outer layer of the skin).
Hair Shaft - (ANSWER)The portion of hair that projects above the Epidermis.
Dermatitis - (ANSWER)Inflammatory condition of the skin.
Hair Follicle - (ANSWER)The tube-like depression or pocket in the skin or scalp
that contains the hair root.
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Hair bulb - (ANSWER)The lowest part of the hair strand. The thickened. Club-
shaped structure that forms the lower part if the hair root.
Arrector pili muscle - (ANSWER)The small, involuntary muscle in the base of the
hair follicle. (The reason for goose bumps).
Dermal papilla - (ANSWER)A small cone-shaped elevation located at the base of
the hair follicle that fits into the hair bulb. (Plural: dermal papillae)
Dyschromias - (ANSWER)Abnormal colorations of the skin that accompany many
skin disorders and systemic disorders.
Eczyma - (ANSWER)An inflammatory, uncomfortable, and often chronic disease
of the skin characterized by moderate to severe inflammation, scaling and
sometimes severe itching.
Excoriation - (ANSWER)Skin sore or abrasion produced by scratching or scraping.
Extrinsic Factors - (ANSWER)Primarily environmental factors that contribute to
aging and the appearance of aging.
Sebaceous glands - (ANSWER)Oil glands in the skin and scalp that secrete sebum .
Keratinization - (ANSWER)Process of creating keratin protein. A non-living fiber.