Term
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Definition
| The scientific study of the hair, its diseases, and its care is called: |
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Definition
| The two main divisions of the hair are the hair root and the: |
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Definition
| The three main structures associated with the hair root are the follicle, the bulb, and the: |
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Definition
| The hair roon is contained in a tube-like depression, or pocket, in the skin known as the: |
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Definition
| The club-shaped structure that forms the lower part of the hair root is the: |
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Definition
| The blood and nerve supply that provides nutrients needed for hair growth are contained in the: |
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Definition
| The tiny involuntary muscle in the skin that contracts and causes "goose bumps" is the: |
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Term
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Definition
| The oily substance called sebum is secreted by the: |
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Term
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Definition
| The three layers of the hair shaft are the cuticle, cortex, and: |
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Term
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Definition
| Generally, only thick, coarse hair contains a: |
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Term
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Definition
| About 90% of the total weight of hair comes from the: |
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Term
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Definition
| The layer of the hair shaft that protects it from penetration and damage is the: |
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Term
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Definition
| Liquids can penetrate the hair only when the ____ is raised: |
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Term
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Definition
| In order to penetrate the cuticle layer and reach the cortex, oxidation haircolors, perm solutions, and chemical relaxers must have: |
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Term
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Definition
| The changes that take place in the hair during permanent waving, chemical relaxing, and oxidation haircoloring occur in the: |
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Term
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Definition
| As living cells of the hair mature, they fill up with a protein called: |
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Term
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Definition
| The elements that make up the amino acids in the hair are carbon, nitrogen, hydrogen,: |
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Term
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Definition
| Of the five elements in human hair, the element that makes up the highest percentage is: |
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Term
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Definition
| The cheical bonds that join amino acids to each other are called: |
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Term
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Definition
| The bonds that account for the strength and elasticity of hair are the: |
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Term
| hydrogen, salt, and disulfide bonds |
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Definition
| There are three different types of side bonds in the cortex: |
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Term
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Definition
| The strongest side bonds in the cortex are the: |
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Term
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Definition
| A disulfide bond joins the ____ atoms of two neighboring cystine amino acids to create cystine: |
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Term
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Definition
| Disulfide bonds can be broken by: |
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Term
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Definition
| A hydrogen bond is a physical side bond that is easily broken by: |
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Term
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Definition
| All natural hair color is based on the ratio of: |
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Term
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Definition
| The pigment that provides natural hair colors from red and ginger to yellow/blonde is: |
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Term
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Definition
| All natural hair color is a result of the pigment located within the: |
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Term
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Definition
| The amount of movement in the hair strand is referred to as its: |
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Term
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Definition
| A cross-section of wavy hair strand is usually: |
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Term
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Definition
| Extremely curly hair that forms coils usually: |
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Term
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Definition
| The four most important factors to consider in a hair analysis include all the following except: |
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Term
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Definition
| Hair tecture is defined as the hair's: |
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Term
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Definition
| The hair's ability to absorb moisture is its: |
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Term
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Definition
| ____ hair has the largest diameter: |
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Term
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Definition
| The hair texture that is most susceptibe to damage from chemical services is: |
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Term
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Definition
| The number of individual hair strands on 1 square inch of scalp is referred to as: |
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Term
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Definition
| The number of hairs on the head generally varies with the: |
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Term
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Definition
| The thickest hair (highest density) is generally found among people with: |
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Term
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Definition
| Hair with low porosity is considered: |
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Term
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Definition
| Hair with high porosity is generally the result of: |
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Term
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Definition
| Wet hair with normal elasticity will strech up to ____ of its original length and return to that same length without breaking: |
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Term
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Definition
| Hair flowing in the same direction is called a: |
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Term
| inactice sebaceous glands |
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Definition
| Dry hair and scalp are caused by: |
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Term
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Definition
| All of the following characteristics apply to vellus hair except: |
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Term
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Definition
| Hormonal changes during puberty cause some areas of vellus hair to be replaced with: |
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Term
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Definition
| The three phases of hair growth are anagen, catagen, and: |
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Term
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Definition
| The growth phase of the hair growth ccle is known as: |
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Term
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Definition
| The follicle canal shrinks and detaches from the dermal papilla during the: |
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Term
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Definition
| About ____ of scalp hair is growing in the anagen phase at any one time: |
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Term
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Definition
| The phase of hair growth that lasts the shortest time is the: |
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Term
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Definition
| The resting phase of the hair growth cycle is known as: |
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Term
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Definition
| About ____ of the hair is the in resting phase at any one time: |
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Term
| scalp message increases hair growth |
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Definition
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Term
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Definition
| Gray hair is exactly the same as pigmented hair except the it: |
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Term
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Definition
| A loss of 35 to 40 hairs a day is considered: |
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Term
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Definition
| Abnormal hair loss is called: |
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Term
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Definition
| A client's hair must be____ before any service: |
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Term
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Definition
| By age 35, almost ____ percent of men and women show some degree of hair loss: |
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Term
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Definition
| In men, a horseshoe-shaped fringe of hair is referred to as: |
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Term
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Definition
| A miniaturization of terminal hair contributes to: |
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Term
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Definition
| A type of alopecia characterized by the sudden falling out of hair in round patches or baldness in spots is called: |
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Term
| general thinning of crown hair |
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Definition
| In women, androgenic alopecia shows up as: |
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Term
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Definition
| Hair loss at the conclusion of a pregnancy is called: |
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Term
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Definition
| A topical medication applied to the scalp that has been proven to stimulate hair growth is: |
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Term
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Definition
| Of the two products proven to stimulate hair growth, the oral prescription drug is called: |
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Term
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Definition
| Finasteride is not prescribed for women because of the strong potential for: |
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Term
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Definition
| Among the various treatments for hair loss, hair plugs are the: |
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Term
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Definition
| Hair plugs may be transplanted by: |
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Term
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Definition
| The technical term for gray hair is: |
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Term
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Definition
| The type of canities that exists at or before birth is known as: |
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Term
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Definition
| The type of canities that developes with age and is the result of genetics is called: |
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Term
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Definition
| Ringed hair is a cariety of: |
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Term
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Definition
| The technical term for beaded hair is: |
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Term
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Definition
| The technical term for split ends is called: |
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Term
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Definition
| Abnormal growth of hair is called: |
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Term
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Definition
| A condition characterized by brittleness and nodular swellings along the hair shaft is: |
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Term
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Definition
| Wax hair removal, tweezing, shaving, and electrolysis are among the treatments for: |
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Term
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Definition
| The condition in which the hairs may split at any part of their length is called: |
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Term
| pityraiasis capitis simplex |
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Definition
| Dry dandruff, thin scales, and an itchy scalp are all typical of: |
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Term
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Definition
| Pityriasis steatoides is a scalp inflammation marked by: |
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Term
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Definition
| Clients with tinea capitis should be: |
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Term
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Definition
| Tinea, or ringworm, is caused by: |
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Term
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Definition
| Ringworm of the scalp is also known by the technical term: |
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Term
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Definition
| Dry, sulfur-yellow, cuplike crusts on the scalp, called sctula, are characteristic of: |
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Term
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Definition
| The contagious skin disease caused by the itch mite burrowing under the skin is known as: |
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Term
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Definition
| Pediculosis capitis is the infestation of the hair and scalp with: |
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Term
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Definition
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Term
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Definition
| An inflammation of the subcutaneous tissue caused by staphylocci is called: |
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Term
| sanitation and disinfection |
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Definition
| Preventing the spread of tinea, pityriasis, and staphylocci infections involves proper: |
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