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Hair Design State Board Written Test > Ch. 11 - Properties of the Hair & Scalp > Flashcards

Ch. 11 - Properties of the Hair & Scalp Flashcards

1
Q

The scientific study of hair, its diseases, and care is called ______________.

A

trichology

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2
Q

The two parts of a mature strand of human hair are the ______________.

A

hair root and hair shaft

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3
Q

The tube-like depression or pocket in the skin or scalp that contains the hair root is the ______________.

A

hair follicle

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4
Q

Hair follicles are not found on the ______________.

A

soles of the feet

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5
Q

The ______________ is the small, involuntary muscle in the base of the hair follicle.

A

arrector pili muscle

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6
Q

The fatty or oily substance secreted by sebaceous glands is ______________.

A

sebum

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7
Q

For chemicals to penetrate a healthy cuticle hair layer, they must have ______________.

A

an alkaline pH

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8
Q

The medulla is composed of ______________ cells.

A

round

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9
Q

During the ______________ phase, new hair is produced because new cells are actively manufactured in the hair follicle.

A

anagen

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10
Q

The major elements that make up human hair are carbon, oxygen, hydrogen, ______________.

A

nitrogen, and sulfur

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11
Q

The strong, chemical bonds that join amino acids are called ______________.

A

peptide bonds

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12
Q

Which type of melanin provides natural colors ranging from red and ginger to yellow and blonde types?

A

Pheomelanin

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13
Q

Asians tend to have ______________ hair.

A

extremely straight

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14
Q

To help minimize tangles in extremely curly hair when shampooing, you should use ______________.

A

a detangling rinse

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15
Q

Hair texture is classified as ______________.

A

coarse, medium, or fine

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16
Q

The measurement of the number of individual hair strands on one square inch (2.5 square centimeters) of the scalp is ______________.

A

hair density

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17
Q

Compared to hair with high porosity, chemical services performed on hair with low porosity require ______________.

A

more alkaline solutions

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18
Q

Wet hair with normal elasticity will stretch up to ______________ of its original length and return to that length without breaking.

A

50 percent

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19
Q

Oily hair and scalp can be treated by properly washing with a ______________.

A

normalizing shampoo

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20
Q

Which type of hair almost never has a medulla?

A

Vellus

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21
Q

During which phase does the follicle canal shrink and detatch from the dermal papilla?

A

Catagen

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22
Q

The average growth of healthy scalp hair is ______________.

A

1/2 inch (1.25 centimeters) per month

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23
Q

The technical term used to describe gray hair is ______________.

A

canities

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24
Q

A condition of abnormal growth of terminal hair in areas of the body that normally grown only vellus hair is ______________.

A

hypertrichosis

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25
Q

The technical term for dandruff is ______________.

A

pityriasis

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26
Q

Which of the five main structures of the hair root contain the blood and nerve supply that provides the nutrients needed for hair growth?

A

Dermal papilla

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27
Q

Because there are so many of them, salt bonds account for about ______________ of the hair’s overall strength.

A

One third

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28
Q

The anagen phase generally lasts from three to five ______________.

A

years

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29
Q

Scalp hair grows ______________ on women than on men.

A

faster

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30
Q

The ______________ phase signals the end of the growth.

A

catagen

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31
Q

Scalp massage ______________ hair growth.

A

does not increase

32
Q

Compared to pigmented hair, gray hair is ______________.

A

exactly the same

33
Q

Cross-sections of hair ______________.

A

can be almost any shape

34
Q

Bald men are commonly perceived as ______________.

A

less successful

35
Q

By age 35, almost ______________ percent of both men and women show some degree of hair loss.

A

40

36
Q

Finasteride is an oral prescription medication for hair loss that is meant for ______________.

A

men only

37
Q

Congenital canities exists ______________.

A

at or before birth

38
Q

Dandruff can easily be mistaken for ______________.

A

dry scalp

39
Q

Current research confirms that dandruff is the result of a ______________.

A

fungus

40
Q

When the living cells of hair form and begin their journey upward through the hair follicle, they mature in a process called ______________.

A

keratinization

41
Q

Tinea is characterized by ______________, scales, and sometimes painful circular lesions.

A

itching

42
Q

The infestation of the hair and scalp with head lice is called ______________.

A

pediculosis capitis

43
Q

A carbuncle is similar to a furuncle but is ______________.

A

larger

44
Q

Fine hair is ______________ than coarse or medium hair.

A

more fragile

45
Q

Coarse hair is ______________.

A

stronger than fine hair

46
Q

The ______________ is the outermost layer of the hair.

A

hair cuticle

47
Q

The oil glands in the skin that are connected to the hair follicles are the ______________ glands.

A

sebaceous

48
Q

A ______________ bond is a weak, physical, cross-link side bond easily broken by water or heat.

A

hydrogen

49
Q

Hair is approximately ______________ percent protein.

A

90%

50
Q

Total scalp hair loss is known as ______________.

A

alopecia totalis

51
Q

Hypertrichosis is also known as ______________.

A

hirsuties

52
Q

The naturally occurring fungus that causes the symptoms of dandruff when it grows out of control is ______________.

A

malassezia

53
Q

The ______________ is the lowest part of a hair strand.

A

hair bulb

54
Q

The technical term for beaded hair is ______________.

A

monliethrix

55
Q

A highly contagious skin disease caused by a parasite called a mite that burrows under the skin is ______________.

A

scabies

56
Q

The term for the spiral shape of a coiled protein is ______________.

A

helix

57
Q

Shaving, clipping, and cutting the hair on the head ______________.

A

has no effect on hair growth

58
Q

Dry, sulfur-yellow, cuplike crusts on the scalp are called ______________.

A

scutula

59
Q

The ______________ are part of the integumentary system.

A

hair, skin, nails, and glands

60
Q

The long, coarse, pigmented hair found on the scalp, legs, arms, and bodies of males and females is called ______________.

A

terminal hair

61
Q

The technical term for knotted hair is ______________.

A

trichorrhexis nodosa

62
Q

The ______________ is the innermost layer of the hair and is composed of round cells.

A

medulla

63
Q

When hair leaves the follicles at an angle and forms patterns or streams on the head, it is called ______________.

A

a whorl

64
Q

The part of the hair located below the surface of the epidermis is the ______________.

A

hair root

65
Q

A particular pattern of hair stream that is usually more noticeable on the front hairline in people with short, thick hair is a ______________.

A

cowlick

66
Q

The ability of the hair to absorb moisture is called ______________.

A

hair porosity

67
Q

The middle layer of the hair is the ______________.

A

cortex

68
Q

An autoimmune disorder that causes the affected hair follicles to be mistakenly attacked by a person’s own immune system is ______________.

A

alopecia areata

69
Q

Vellus hair is also known as ______________.

A

lanugo hair

70
Q

What are the basic building blocks of hair that affect how chemical solutions react?

A

Amino acids, peptide bonds, polypeptide chains, keratin proteins, and side bonds

71
Q

Human hair burns ____ giving off a distinctive odor.

A

slowly

72
Q

What is a severe type of dandruff characterized by an accumulation of greasy or waxy scalp scales mixed with sebum?

A

Pityriasis steatoides

73
Q

What is a scalp disorder characterized by dry, sulfur yellow, cup-like crusts on the scalp?

A

Tinea favosa

74
Q

Hair is composed of protein that grows from cells originating within the ______.

A

hair follicle

75
Q

The body naturally produces _______ of the 20 amino acids that make up hair.

A

11

Hair Design State Board Written Test (19 decks)

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