Milady Cosmetology (13th Edition) Chapter 11 Properties of the Hair and Scalp

Question 1

A long chain of amino acids linked by peptide bonds.

Accepted Answer

polypeptide chain

Question 2

Bonds that cross-link the polypeptide chains together; (strength and elasticity of human hair)

Accepted Answer

side bonds

Question 3

A weak, physical, cross-link bond between adjacent polypeptide chains.

Accepted Answer

salt bond

Question 4

Ability of the hair to absorb moisture.

Accepted Answer

hair porosity

Question 5

Gives natural dark brown-black color to the hair; dark pigment primary in black/brunette hair.

Accepted Answer

eumelanin

Question 6

Disulfied bonds are broken by hydroxide chemical relaxers after relaxer is rinsed from hair.

Accepted Answer

lanthionine bonds

Question 7

5 elements carbon oxygen hydrogen nitrogen & sulfur that make up human hair skin tissue & nails

Accepted Answer

COHNS elements

Question 8

Thickened club-shaped structure that forms the lower part of the hair root.

Accepted Answer

hair bulb

Question 9

Thickness or diameter of the individual hair strand.

Accepted Answer

hair texture

Question 10

Small cone shaped elevation at the base of the hair follicle that fits into the hair bulb.

Accepted Answer

dermal papilla

Question 11

Hair loss characterized by miniaturization of terminal hair converted to vellus hair.

Accepted Answer

androgenic alopecia

Question 12

Units joined together end to end that form polypeptide chains that comprise proteins.

Accepted Answer

amino acids

Question 13

Tuft of hair that stands straight up.

Accepted Answer

cowlick

Question 14

Dry, sulfur-yellow, cupcake crusts on the scalp in tinea favosa or tinea favus.

Accepted Answer

scutula

Question 15

Short, fine, unpigmented downy hair that appears on the body; known as lanugo hair

Accepted Answer

vellus hair

Question 16

Growth of terminal hair in areas of the body that normally grow vellus hair, known as hirsuties

Accepted Answer

hypertrichosis

Question 17

Lighter pigment that provides natural color from red and ginger to yellow and blond tones.

Accepted Answer

pheomelanin

Question 18

Easily absorbs moisture; in chemistry terms, capable of combining with or attracting water.

Accepted Answer

hydrophilic

Question 19

Intermost layer hair that is composed of round cells; absent in fine and natural blond hair.

Accepted Answer

medulla

Question 20

Autoimmune disorder causes hair follicles to be mistakenly attacked by a persons immune system.

Accepted Answer

alopecia areata

Question 21

Naturally resistant to being penetrated by moisture.

Accepted Answer

hydrophobic

Question 22

Spiral shape of a coiled protein created by polypeptide chains that intertwine with each other.

Accepted Answer

helix

Question 23

Brittleness and the formation of nodular swelling along the hair shaft. known as knotted hair

Accepted Answer

trichorrhexis nodosa

Question 24

Abnormal hair loss.

Accepted Answer

alopecia

Question 25

Period between the growth and resting phases of a hair follicle signals end of the growth phase

Accepted Answer

catagen phase

Question 26

Inflammation of the sebaceous tissue caused by staphylococci; simular to foruncle but larger.

Accepted Answer

carbuncle

Question 27

Accumulation of greasy or waxy scales mixed with sebum that stick to scalp in crusts.

Accepted Answer

pityriasis steatoides

Question 28

Long, Coarse, pigmented hair found on the scalp, legs, arms and bodies of males and females.

Accepted Answer

terminal hair

Question 29

Boil; acute, localized bacterial infection of the hair follicle that produces constant pain.

Accepted Answer

furuncle

Question 30

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

Accepted Answer

sebaceous glands

Question 31

Canities; alternating bands of gray & pigmented hair throughout the length of the hair strand.

Accepted Answer

ringed hair

Question 32

Infestation of the hair and scalp with head lice.

Accepted Answer

pediculosis capitis

Question 33

Temporary hair loss experienced towards the end and after pregnancy.

Accepted Answer

postpartum alopecia

Question 34

Chemical bond that joins amino acids to eachother end to end to form polypeptide chain.

Accepted Answer

peptide bond

Question 35

Long, coiled complex polypeptides made of amino acids.

Accepted Answer

proteins

Question 36

Small involuntary muscle in the base of the hair follicle.

Accepted Answer

arrector pili muscle

Question 37

A fibrous protein that grows from cells originating within the hair follicle.

Accepted Answer

keratin

Question 38

Number of individual hair strands on 1 square inch of scalp.

Accepted Answer

hair density

Question 39

Technical term 4 classic dandruff characterized by scalp irritation large flakes & itchy scalp.

Accepted Answer

pityriasis capitis simplex

Question 40

Fungal infection w/ dry sulfur-yellow cupcake crusts on the scalp called scutula (tinea favus)

Accepted Answer

tinea favosa

Question 41

Scientific study of hair and its diseases and care.

Accepted Answer

trichology

Question 42

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

Accepted Answer

hair follicle

Question 43

Technical term for dandruff; excessive production and accumulation of skin cells.

Accepted Answer

pityriasis

Question 44

Fungus present on all human skin, it is responsible for dandruff that grows out of control.

Accepted Answer

malassezia

Question 45

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

Accepted Answer

hydrogen bond

Question 46

Middle layer of the hair, a fibrous core formed by elongated cells containing melanin pigment.

Accepted Answer

cortex

Question 47

Bond that joins sulfur atoms of 2 neighboring cysteine amino acids to create 1 cystine

Accepted Answer

disulfide bond

Question 48

Technical term for split ends.

Accepted Answer

trichoptilosis

Question 49

Technical term for gray hair; results from the loss of the hairs natural melanin pigment.

Accepted Answer

canities

Question 50

Outermost layer of hair; consists of a single overlapping layer of transparent scale-like cells

Accepted Answer

hair cuticle

Question 51

The portion of the hair that projects above the epidermis.

Accepted Answer

hair shaft

Question 52

Hair flowing in the same direction, resulting from follicles sloping in the same direction.

Accepted Answer

hair stream

Question 53

Technical term for beaded hair.

Accepted Answer

monilethrix

Question 54

The shape of the hair strands; described as straight wavy, curly, and extremely curly.

Accepted Answer

wave pattern

Question 55

Technical term for brittle hair.

Accepted Answer

fragilitas crinium

Question 56

Hair that forms in a circular pattern on the crown of the head.

Accepted Answer

whorl

Question 57

Total loss of scalp hair.

Accepted Answer

alopecia totalis

Question 58

Final phase in the hair cycle, lasts until the fully grown hair is shed. known as resting phase

Accepted Answer

telogen phase

Question 59

Complete loss of body hair.

Accepted Answer

alopecia universalis

Question 60

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

Accepted Answer

hair root

Question 61

An amino acid with sulfur atom(s) that joins together two peptide strands.

Accepted Answer

cysteine

Question 62

A fatty or oily substance secreted by the sebaceous glands that lubricates the skin.

Accepted Answer

sebum

Question 63

Technical term for ringworm, a contageous condition caused by fungal infection not a parasite.

Accepted Answer

tinea

Question 64

Also known as growth phase; phase during which new hair is produced.

Accepted Answer

anagen phase

Milady Cosmetology (13th Edition) Chapter 11 Properties of the Hair and Scalp

Questions 66

Milady Cosmetology (13th Edition) Chapter 11 Properties of the Hair and Scalp

Questions 66