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70 Cards in this Set
- Front
- Back
The scientific study of hair , its diseases, and care is called: |
Trichology |
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The two parts of a mature strand of human hair are the: |
Hair root and hair shaft |
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The tube-like depression or pocket in the skin or scalp that contains the hair root is the: |
Follicle |
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Hair follicles are not found on the: |
Sole of the feet |
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The ______ is a tiny, involuntary muscle in the base of the hair follicle. |
Arrector pili |
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An oily substance secreted from the sebaceous glands is: |
Sebum |
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For chemicals to penetrate a healthy cuticle hair layer, they must have: |
An alkaline pH |
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The medulla is composed of _____ cells. |
Round |
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The process whereby living cells mature and begin their journey up the hair shaft is: |
Keratinization |
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The five main elements that make up the chemical composition of human hair are carbon, oxygen, hydrogen, and: |
Nitrogen and sulfur |
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The chemical bonds that hold together the amino acid molecules are called: |
Peptide bonds |
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Which type of melanin provides natural colors ranging from red and ginger to yellow and blond tones? |
Pheomelanin |
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Asians tend to have: |
Extremely straight hair |
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To help minimize tangles in extremely curly hair when washing, you should use: |
A detangling rinse |
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Hair texture is classified as: |
Coarse, medium, or fine |
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The measurement of individual hair strands on 1 square inch (2.5 square centimeters) of the scalp is: |
Hair density |
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Compared to hair with high porosity, chemical services performed on hair with low porosity require: |
More alkaline solution |
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Wet hair with normal elasticity will stretch up to _____ of its original length. |
50% |
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Oily scalp and hair can be treated by properly washing it: |
With normalizing shampoo |
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Vellus hair almost never has what? |
A medulla |
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The growth phase during which new hair is produced is: |
Anagen |
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The average growth of healthy scalp hair is: |
1/2 inch (1.25 cm) per week |
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The technical term used to describe gray hair is: |
Canities |
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A condition of abnormal hair growth on areas of the body is: |
Hypertrichosis |
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The medical term for dandruff is: |
Pityriasis |
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The body can produce 11 of the 30 ______ that make up hair. |
Amino acids |
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Salt bonds account for about _______ of the hair's overall strength. |
1/3 |
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The anagen phase generally lasts from three to five: |
Years |
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Scalp hair grows _________ on women then on men. |
Faster |
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The _________ phase signals the end of the growth phase. |
Catagen |
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Scalp massage ______ hair growth |
Does not affect |
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Compared to pigmented hair, gray hair is: |
Neither coarser nor more resistant |
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Cross-sections of hair: |
Can be almost any shape |
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Bald men are commonly perceived as: |
Less successful |
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By the age of 35, almost ________ percent of both men and women show some degree of hair loss. |
40 |
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Finasteride is an oral prescription medication for hair loss that is meant for: |
Men ONLY |
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Congenital canities manifest: |
At or before birth |
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Dandruff can easily be mistaken for: |
Tinea |
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Dandruff is believed to be caused by a: |
Fungus |
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The most frequently encountered fungal infection resulting from hair services is: |
Tinea barbae |
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Tinea is characterized by: |
Itching |
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The infestation of hair and scalp with head lice is called: |
Pediculosis capitis |
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A carbuncle is similar to a furuncle, but is: |
Larger |
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Fine hair is ________ than coarse or medium hair. |
More fragile |
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Coarse hair: |
Is stronger than fine hair |
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The ________ is the outermost layer of the hair. |
Hair cuticle |
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The oil glands in the skin that are connected to the hair follicles are the ________ glands. |
Sebaceous |
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A ______ bond is a physical bond easily broken by water or heat. |
Hydrogen |
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Hair is approximately ________ percent protein. |
90 |
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Total scalp hair loss is known as: |
Alopecia totalis |
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Hypertrichosis is also known as: |
Hirsuties |
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The naturally occurring fungus that causes the symptoms of dandruff when it grows out of control is: |
Malassezia |
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The ________ is the lowest part of the hair strand. |
Hair bulb |
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The technical term for beaded hair is: |
Monilethrix |
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A highly contagious skin disease cause by a parasite called a mite that burrows under the skin is: |
Scabies |
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The term for spiral shaped coiled protein is: |
Helix |
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Shaving, clipping, and cutting the hair on the head: |
Has no effect on hair growth |
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Dry, sulfer-yellow, cup-like crusts on the scalp called: |
Scutula |
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The _________ are part of the integumentary system. |
Hair, skin, nails, and glands |
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The long, coarse, pigmented hair found on the scalp, legs, arms, and bodies of males and females is called: |
Terminal hair |
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The technical term for knotted hair is: |
Trichorrhexis nodosa |
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The ______ is the innermost layer of the hair. |
Medulla |
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Hair that forms in a circular pattern on the crown of the head is called: |
Whorl |
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The part of the hair located below the surface of the epidermis is the: |
Hair root |
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A tuft of hair that stands straight up is a: |
Cowlick |
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The ability of the hair to absorb moisture is called: |
Hair porosity |
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The middle layer of the hair is the: |
Cortex |
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An autoimmune disorder that causes affected hair follicles to be mistakenly attacked by a person's own immune system is: |
Alopecia areata |
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Vellus hair is also known as: |
Lanugo hair |
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The medical term for ringworm is: |
Tinea favosa |