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
What substances are compromised of long coiled complex polypeptides made of amino acids?
Proteins
26
The three different types of side bonds that link chains of amino acids together are?
Hydrogen salt and sulfide
27
A physical side bond that is easily broken by water and heat is a blank bond
Hydrogen
28
What type of bond is broken by wetting the hair with water and his reformed when the hair dries?
Hydrogen bond
29
A weak, physical, cross-link side bond between adjacent polypeptide chains that is broken by changes in pH is a blank bond
Salt
30
Permanent waving and hair relaxers change the shape of hair by chemically altering the hairs blank?
Disulfide bonds
31
Hydroxide chemical relaxers break disulfide bonds and convert them to blank bonds?
Lanthionine
32
All natural hair color is the result of pigment called
Melanin
33
The pigment that provides brown or black color to hair is blank?
Eumelanin
34
What pigment in hair provides natural colors ranging from red and ginger to yellow and blonde tones?
Pheomelanin
35
What term refers to the shape of the hair strand?
Wave pattern
36
What is the cross-section shape of curly hair?
Oval
37
Vellus hair is also known as blank hair?
Lanugo
38
What type of hair is short fine and pigmented and Downy?
Vellus hair
39
What are the three growth cycles of human hair?
Anagen catagen and telogen
40
What is the growth phase during which new hair is produced?
Anagen
41
What is the resting phase or a final phase of the hair cycle that last until the fully grown hair is shed?
Telogen phase
42
The sudden falling out of hair and round patches or baldness in spots is known as
Alopecia areata
43
The complete loss of all body hair is known as
Alopecia universalis
44
The temporary hair loss experience at the end of a pregnancy is called
Post partum alopecia
45
What is the technical term for gray hair?
Canities
46
The condition of abnormal hair growth of terminal hair is referred to as
Hypertrichosis
47
Trichopitilosis Is the technical term for blank?
Split ends
48
What is the condition that is characterized by brittleness and the formation of nodular swellings along the hair shaft?
Trichorrhexis nodosa
49
What is the technical term for beaded hair?
Monilethrix
50
What is the technical term for brittle hair?
Fragilitas crinium
51
What is the medical term used to describe dandruff?
Pityriasis
52
Current research confirms that dandruff is the result of a fungus called
Malassezia
53
What is a severe type of dandruff characterized by an accumulation of greasy or waxy scalp scales mixed with sebum?
Pityriasis steatoides
54
What is severe form of dandruff is accompanied by redness and inflammation?
Seborrheic dermatitis
55
What is the medical term for ringworm?
Tinea
56
Tinea is characterized by itching skills and sometimes painful circular lesions and it’s caused by
Fungal organisms
57
What is a scalp disorder characterized by dry sulfur - yellow, cup like crusts on the scalp?
Tinea favosa
58
What is a highly contagious skin disease caused by a parasite called a mite
Scabies
59
What term refers to an infestation of the hair and scalp with head lice?
Pediculosis capitis
60
What term refers to an acute localized bacterial infection of the hair follicle that produces constant pain
Furuncle
61
The thickness or diameter of the individual hair strand is referred to as hair blank
Texture
62
Which type of hair has the largest diameter and usually requires more processing
Coarse hair
63
The measurement that describes the number of individual hair strands on one square inch of the scalp is hair blank
Density
64
The ability of the hair to absorb moisture is hair blank
Porosity
65
Chemical services performed on here with low porosity require a blank solution
More alkaline
66
The ability of the hair to stretch and returned to its original lanes without breaking his referred to as hair blank
Elasticity
67
Hair flowing in the same direction as the result of follicles sleeping in the same direction is known as a
Hair stream
68
Dry hair and scalp should be treated with products that contain moisturizers and
Emollients