Oregon Barber License (practice test
for board exam)With Complete
Solutions 2023
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.
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.
,Oregon Barber License (practice test
for board exam)With Complete
Solutions 2023
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.
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 .
,Oregon Barber License (practice test
for board exam)With Complete
Solutions 2023
Keratinization - Answer Process of creating keratin protein. A non-living fiber.
Fissure - Answer A crack in the skin that penetrates the dermis. Example severely
cracked hands/lips.
COHNS elements - Answer The major elements that make up human hair are :
Carbon, Oxygen, Hydrogen, Nitrogen, and Sulfur
Amino acids - Answer Units that are joined together end to end like pop beads
creating long chains of protein .
Peptide bond - Answer A strong chemical bond that joins amino acids also known as
an "end bond".
Proteins - Answer Long, coiled complex polypeptides made of amino acids.
Polypeptide chain - Answer A long chain of amino acids linked by peptide bonds.
Hydrogen bond - Answer A weak, physical, cross-linking side bond easily broken By
water or heat.
Salt Bond - Answer A weak physical cross link bond between adjacent polypeptide
chains. They depend on pH so they're easily broken by strong alkaline or acidic
solutions.
Disulfide Bond - Answer A strong, chemical side bond that is different from the
physical side bond of a Hydrogen or salt bond.
Wave Pattern - Answer The shape of the hair strand. Can be described as straight,
curly, extremely curly.
Vellus hair - Answer Aka-"lanugo hair* is short, fine, unpigmented and downy hair
that appears on the body.
Terminal Hair - Answer Long, coarse, pigmented hair found on the scalp, legs, arms,
and bodies of males and females. Coarser than vellus hair.
Anagen Phase - Answer Aka-"Growth Phase" where new hair is produced.
Catagen Phase - Answer The brief transition period between the growth and resting
phases of a hair follicle.
Telogen Phase - Answer Aka-"Resting Phase"-the final phase in the hair cycle and
lasts until the fully grown hair is shed.
, Oregon Barber License (practice test
for board exam)With Complete
Solutions 2023
Androgenic alopecia - Answer Aka-"Androgenetic Alopecia - is hair loss
characterized by miniaturization of terminal Hair that is converted into vellus hair.
Usually the result of genetics, age, or hormonal changes.
Free radicals - Answer Unstable molecules that cause biochemical aging, especially
wrinkling and sagging of the skin.
Alopecia areata - Answer An autoimmune disorder that causes the affected hair
follicles to be mistakenly attacked by a person's own immune system.
Postpartum aloepcia - Answer A temporary hair loss experienced At the end of
pregnancy.
Alopecia totalis - Answer This hair disorder usually begins with one or more small,
round, smooth bald patches and can progress to total scalp hair loss .
Alopecia universalis - Answer Complete body hair loss .
Minoxidil/ Finasteride - Answer The only two hair loss treatments said to counter hair
loss and approved by the FDA to sale in the USA.
Canities - Answer Technical term for gray hair.
Ringed hair - Answer Is a variety of canities, characterized by alternating bands of
gray and pigmented hair throughout the length of the hair strand.
Hypertrichosis - Answer Aka-"Hirsutism"- A condition of abnormal growth of hair.
Characterized by the growth of terminal Hair in areas of the body that normally grows
vellus hair.
Trichoptilosis - Answer The technical term for split ends.
Trichorrhexis nodosa - Answer Technical term for knotted Hair. Characterized by
brittleness and the formation of nodular dwellings along the hair shaft.
Monilethrix - Answer Technical term for beaded hair. The hair breaks easily between
the beads or nodes.
Fragilitas crinium - Answer Technical term for brittle hair.
Pityriasis - Answer Technical term for dandruff.
Malassezia - Answer A naturally occurring fungus that is present on all human skin
but causes the symptoms of dandruff if it grows out of control.
for board exam)With Complete
Solutions 2023
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.
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.
,Oregon Barber License (practice test
for board exam)With Complete
Solutions 2023
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.
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 .
,Oregon Barber License (practice test
for board exam)With Complete
Solutions 2023
Keratinization - Answer Process of creating keratin protein. A non-living fiber.
Fissure - Answer A crack in the skin that penetrates the dermis. Example severely
cracked hands/lips.
COHNS elements - Answer The major elements that make up human hair are :
Carbon, Oxygen, Hydrogen, Nitrogen, and Sulfur
Amino acids - Answer Units that are joined together end to end like pop beads
creating long chains of protein .
Peptide bond - Answer A strong chemical bond that joins amino acids also known as
an "end bond".
Proteins - Answer Long, coiled complex polypeptides made of amino acids.
Polypeptide chain - Answer A long chain of amino acids linked by peptide bonds.
Hydrogen bond - Answer A weak, physical, cross-linking side bond easily broken By
water or heat.
Salt Bond - Answer A weak physical cross link bond between adjacent polypeptide
chains. They depend on pH so they're easily broken by strong alkaline or acidic
solutions.
Disulfide Bond - Answer A strong, chemical side bond that is different from the
physical side bond of a Hydrogen or salt bond.
Wave Pattern - Answer The shape of the hair strand. Can be described as straight,
curly, extremely curly.
Vellus hair - Answer Aka-"lanugo hair* is short, fine, unpigmented and downy hair
that appears on the body.
Terminal Hair - Answer Long, coarse, pigmented hair found on the scalp, legs, arms,
and bodies of males and females. Coarser than vellus hair.
Anagen Phase - Answer Aka-"Growth Phase" where new hair is produced.
Catagen Phase - Answer The brief transition period between the growth and resting
phases of a hair follicle.
Telogen Phase - Answer Aka-"Resting Phase"-the final phase in the hair cycle and
lasts until the fully grown hair is shed.
, Oregon Barber License (practice test
for board exam)With Complete
Solutions 2023
Androgenic alopecia - Answer Aka-"Androgenetic Alopecia - is hair loss
characterized by miniaturization of terminal Hair that is converted into vellus hair.
Usually the result of genetics, age, or hormonal changes.
Free radicals - Answer Unstable molecules that cause biochemical aging, especially
wrinkling and sagging of the skin.
Alopecia areata - Answer An autoimmune disorder that causes the affected hair
follicles to be mistakenly attacked by a person's own immune system.
Postpartum aloepcia - Answer A temporary hair loss experienced At the end of
pregnancy.
Alopecia totalis - Answer This hair disorder usually begins with one or more small,
round, smooth bald patches and can progress to total scalp hair loss .
Alopecia universalis - Answer Complete body hair loss .
Minoxidil/ Finasteride - Answer The only two hair loss treatments said to counter hair
loss and approved by the FDA to sale in the USA.
Canities - Answer Technical term for gray hair.
Ringed hair - Answer Is a variety of canities, characterized by alternating bands of
gray and pigmented hair throughout the length of the hair strand.
Hypertrichosis - Answer Aka-"Hirsutism"- A condition of abnormal growth of hair.
Characterized by the growth of terminal Hair in areas of the body that normally grows
vellus hair.
Trichoptilosis - Answer The technical term for split ends.
Trichorrhexis nodosa - Answer Technical term for knotted Hair. Characterized by
brittleness and the formation of nodular dwellings along the hair shaft.
Monilethrix - Answer Technical term for beaded hair. The hair breaks easily between
the beads or nodes.
Fragilitas crinium - Answer Technical term for brittle hair.
Pityriasis - Answer Technical term for dandruff.
Malassezia - Answer A naturally occurring fungus that is present on all human skin
but causes the symptoms of dandruff if it grows out of control.
