Hair Theory Flashcards

1
Q

Bundles called melanosomes are formed by:

A

Melanocytes

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2
Q

If the diameter of a female client’s ponytail has become smaller over time, it could indicate:

A

Androgenetic alopecia

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3
Q

Non-medical options for hair loss include:

A

wigs or toupées

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4
Q

Short, fine, non-pigmented hair found more abundantly on women is known as:

A

Vellus

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5
Q

Catagen, a brief transitional stage of hair growth, lasts for what amount of time?

A

Lasts only a few weeks

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6
Q

Eumelanin is the type of melanin that produces:

A

Brown.black hair

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7
Q

Gray hair is caused by:

A

reduced color pigment in the cortex layer of the hair

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8
Q

Hair color is darker during which stage of growth?

A

Anagen

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9
Q

Hair grows from a tube-like “pocket” called a root sheath or a(n):

A

Follicle

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10
Q

Hair that has been pulled out from the roots can grow back under which of the following circumstances?

A

the papilla has not been destroyed

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11
Q

Hair that is 90% cortex and 10% cuticle when compared to hair that is 40% cuticle would be considered to be more:

A

Elastic

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12
Q

How long does the telogen, or resting stage of hair growth, last?

A

3-4 months

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13
Q

Human hair, on the average, grows about:

A

1/2” (1.25 cm) per month

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14
Q

Keratinization is a process whereby cells do all of the following EXCEPT:

A

form keratin protein

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15
Q

Mitosis takes place in the area of the hair bulb called the:

A

Germinal matrix

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16
Q

People with lighter colored hair have melanin in the:

A

cortex

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17
Q

The active growing stage of hair lasts from:

A

2 to 6 years

18
Q

The papilla supplies nourishment to the:

A

germinal matrix

19
Q

The technical name for the hair of the head is known as:

A

Capilli

20
Q

What does number 2 on the diagram represent?

A

102.12 p. 179

21
Q

What is formed when sebum produced by the oil glands mixes with the body’s perspiration?

A

Acid mantle

22
Q

Which of the following terms is another name for cell division?

A

Mitosis

23
Q

A condition in which beads or nodes form on the hair shaft is called:

A

Monilethrix is a condition in which beads or nodes form on the hair shaft.

24
Q

A disorder that refers to thick, crusty patches of red irritated scalp is known as:

A

psoriasis

25
Q

Alopecia, or excessive hair loss, may be caused by any one of the following EXCEPT:

A

inflammatory disease of the scalp

26
Q

An abnormal coverage of hair on areas of the body where normally only lanugo, or baby-fine hair appears, is a condition known as:

A

hypertrichosis

27
Q

An infestation of head lice on the scalp is called:

A

pediculosis capitis

28
Q

Baldness that occurs early in life, beginning as early as late adolescence is referred to as:

A

alopecia prematura

29
Q

Excessive matting of the hair is referred to as:

A

plica polonica

30
Q

Fragilitis crinium is the technical name for:

A

split ends

31
Q

If the layers of the cuticle are very close together the hair has which type of porosity?

A

the hair has resistant porosity.

32
Q

In androgenetic alopecia, a combination of heredity, hormones and age causes:

A

shrinking or miniaturization of certain scalp follicles

33
Q

In men, male pattern baldness takes the shape of:

A

In men, male pattern baldness takes the shape of a horseshoe-shaped fringe.

34
Q

Long, thick pigmented hair such as scalp and eyebrow hair is referred to as

A

terminal hair

35
Q

Malassezia is a microscopic fungus that is the leading cause of:

A

dandruff

36
Q

Red, watery vesicles or pus-filled areas caused by an itch mite burrowing under the skin are known as:

A

Scabies

37
Q

The name given to grayness or whiteness of the hair is:

A

canities

38
Q

The technical term for broken hair is:

A

abraded hair

39
Q

What scalp disease might be present if prior to a service several dry, yellow, encrusted areas on the scalp are noticed along with a peculiar odor?

A

tinea favosa

40
Q

Which of the following refers to the ability of hair to stretch and return to its original shape without breaking?

A

Elasticity