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Cosmetology > Chapter 11 - properties of the hair and scalp > Flashcards

Chapter 11 - properties of the hair and scalp Flashcards

1
Q

What term refers to the scientific study of hair and it’s diseases and care?

A

Trichology

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2
Q

The Greek word Trichos means

A

Hair

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3
Q

The hair skin nails and glands are part of the blink system?

A

Intugementary

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4
Q

What part of the hair is located below the surface of the epidermidis?

A

Hair root

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5
Q

The pocket to like depression in the scalp or skin that contains the hair root is the hair blank

A

Follicle

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6
Q

The thick and club like structure that forms the lower part of the hair root is the blank

A

Hair bulb

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7
Q

A small cone shaped area located at the base of the hair follicle that fits into the hair bulb is the blank

A

Dermal papilla

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8
Q

What structure contain the blood and nerve supply that provide the nutrients needed for hair growth?

A

Dermal papillae

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9
Q

The small involuntary muscle fiber in the base of the hair follicle is the?

A

Arrector pili

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10
Q

The substance secreted by the sebaceous glands is called?

A

Sebum

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11
Q

What is the oily substance secreted by the skins oil glands and lubricates the hair and skin?

A

Sebum

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12
Q

The body naturally produces blank of the 20 amino acids that make up hair?

A

11

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13
Q

What is the outer most layer of the hair?

A

The cuticle

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14
Q

Which layer of the hair shaft creates the shine and the smooth silky feel of healthy hair?

A

Hair cuticle

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15
Q

A lengthwise section of hair shows that cuticle scales overlap and each individual cuticle scale is attached to the blank

A

Cortex

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16
Q

Which term refers to a layer that protects the hair from penetration and prevent damage to her fibers?

A

Hair cuticle

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17
Q

The fibrous proteins core formed by elongated cells that contains melanin pigment is the blank?

A

Cortex

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18
Q

The changes involved in oxidation Hair coloring, what setting, thermal styling, permanent waving, and chemical hair relaxing take place within the blank?

A

Cortex

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19
Q

Hair is composed of protein that grows from cells originating within the blank?

A

Hair follicle

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20
Q

The hair shaft that emerges from the scalp is a non-living fiber composed of

A

Keratinized protein

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21
Q

Hair is approximately blank percent Protein

A

90

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22
Q

The major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and so far, often referred to as

A

COHNS elements

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23
Q

The units of structure that build protein and Are joined together end to end like pop beads are blank

A

Amino acids

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24
Q

A long chain of amino acids linked by peptide bonds is called a blank chain

A

Polypeptide

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25
Q

What substances are compromised of long coiled complex polypeptides made of amino acids?

A

Proteins

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26
Q

The three different types of side bonds that link chains of amino acids together are?

A

Hydrogen salt and sulfide

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27
Q

A physical side bond that is easily broken by water and heat is a blank bond

A

Hydrogen

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28
Q

What type of bond is broken by wetting the hair with water and his reformed when the hair dries?

A

Hydrogen bond

29
Q

A weak, physical, cross-link side bond between adjacent polypeptide chains that is broken by changes in pH is a blank bond

A

Salt

30
Q

Permanent waving and hair relaxers change the shape of hair by chemically altering the hairs blank?

A

Disulfide bonds

31
Q

Hydroxide chemical relaxers break disulfide bonds and convert them to blank bonds?

A

Lanthionine

32
Q

All natural hair color is the result of pigment called

A

Melanin

33
Q

The pigment that provides brown or black color to hair is blank?

A

Eumelanin

34
Q

What pigment in hair provides natural colors ranging from red and ginger to yellow and blonde tones?

A

Pheomelanin

35
Q

What term refers to the shape of the hair strand?

A

Wave pattern

36
Q

What is the cross-section shape of curly hair?

A

Oval

37
Q

Vellus hair is also known as blank hair?

A

Lanugo

38
Q

What type of hair is short fine and pigmented and Downy?

A

Vellus hair

39
Q

What are the three growth cycles of human hair?

A

Anagen catagen and telogen

40
Q

What is the growth phase during which new hair is produced?

A

Anagen

41
Q

What is the resting phase or a final phase of the hair cycle that last until the fully grown hair is shed?

A

Telogen phase

42
Q

The sudden falling out of hair and round patches or baldness in spots is known as

A

Alopecia areata

43
Q

The complete loss of all body hair is known as

A

Alopecia universalis

44
Q

The temporary hair loss experience at the end of a pregnancy is called

A

Post partum alopecia

45
Q

What is the technical term for gray hair?

A

Canities

46
Q

The condition of abnormal hair growth of terminal hair is referred to as

A

Hypertrichosis

47
Q

Trichopitilosis Is the technical term for blank?

A

Split ends

48
Q

What is the condition that is characterized by brittleness and the formation of nodular swellings along the hair shaft?

A

Trichorrhexis nodosa

49
Q

What is the technical term for beaded hair?

A

Monilethrix

50
Q

What is the technical term for brittle hair?

A

Fragilitas crinium

51
Q

What is the medical term used to describe dandruff?

A

Pityriasis

52
Q

Current research confirms that dandruff is the result of a fungus called

A

Malassezia

53
Q

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

A

Pityriasis steatoides

54
Q

What is severe form of dandruff is accompanied by redness and inflammation?

A

Seborrheic dermatitis

55
Q

What is the medical term for ringworm?

A

Tinea

56
Q

Tinea is characterized by itching skills and sometimes painful circular lesions and it’s caused by

A

Fungal organisms

57
Q

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

A

Tinea favosa

58
Q

What is a highly contagious skin disease caused by a parasite called a mite

A

Scabies

59
Q

What term refers to an infestation of the hair and scalp with head lice?

A

Pediculosis capitis

60
Q

What term refers to an acute localized bacterial infection of the hair follicle that produces constant pain

A

Furuncle

61
Q

The thickness or diameter of the individual hair strand is referred to as hair blank

A

Texture

62
Q

Which type of hair has the largest diameter and usually requires more processing

A

Coarse hair

63
Q

The measurement that describes the number of individual hair strands on one square inch of the scalp is hair blank

A

Density

64
Q

The ability of the hair to absorb moisture is hair blank

A

Porosity

65
Q

Chemical services performed on here with low porosity require a blank solution

A

More alkaline

66
Q

The ability of the hair to stretch and returned to its original lanes without breaking his referred to as hair blank

A

Elasticity

67
Q

Hair flowing in the same direction as the result of follicles sleeping in the same direction is known as a

A

Hair stream

68
Q

Dry hair and scalp should be treated with products that contain moisturizers and

A

Emollients

Cosmetology (14 decks)

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