Chapter 11

Question 1

What term refers to the scientific study of hair and its diseases and care?

Answer 1

Trichology

Question 2

The Greek word trichos means _____.

Answer 2

Hair

Question 3

The hair, skin, nails, and glands are part of the _____ system.

Answer 3

Integumentary

Question 4

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

Answer 4

Hair Root

Question 5

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

Answer 5

Follicle

Question 6

The thickened, club-like structure that forms the lower part of the hair root is the _____.

Answer 6

Hair Bulb

Question 7

A small, cone-shaped area located at the base of the hair follicle that fits into the hair bulb is the _____.

Answer 7

Dermal Papilla

Question 8

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

Answer 8

Dermal Papillae

Question 9

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

Answer 9

Arrest or Pili

Question 10

The substance secreted by the sebaceous glands is called _____.

Answer 10

Sebum

Question 11

What is the oily substance secreted by the skin’s oil glands that lubricates the hair and skin?

Answer 11

Sebum

Question 12

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

Answer 12

11

Question 13

What is the outermost layer of hair?

Answer 13

Hair Cuticle

Question 14

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

Answer 14

Hair Cuticle

Question 15

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

Answer 15

Cortex

Question 16

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

Answer 16

Hair Cuticle

Question 17

The fibrous protein core formed by elongated cells that contains melanin pigment is the _____.

Answer 17

Cortex

Question 18

The changes involved in oxidation haircoloring, wet setting, thermal styling, permanent waving, and chemical hair relaxing take place within the _____.

Answer 18

Cortex

Question 19

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

Answer 19

Hair Follicle

Question 20

The hair shaft that emerges from the scalp is a nonliving fiber composed of _____.

Answer 20

Keratinized Protein

Question 21

Hair is approximately _____ percent protein.

Answer 21

90

Question 22

The major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and sulfur, often referred to as _____.

Answer 22

COHNS Elements

Question 23

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

Answer 23

Amino Acids

Question 24

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

Answer 24

Polypeptide

Question 25

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

Answer 25

Proteins

Question 26

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

Answer 26

Hydrogen, Salt, and Disulfide

Question 27

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

Answer 27

Hydrogen

Question 28

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

Answer 28

Hydrogen Bond

Question 29

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

Answer 29

Salt

Question 30

Permanent waving and hair relaxers change the shape of hair by chemically altering the hair’s _____.

Answer 30

Disulfide Bonds

Question 31

Hydroxide chemical relaxers break disulfide bonds and convert them to _____ bonds

Answer 31

Lanthionine

Question 32

All natural hair color is the result of pigment called _____.

Answer 32

Melanin

Question 33

The pigment that provides brown or black color to hair is _____.

Answer 33

Eumelanin

Question 34

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

Answer 34

Pheomelanin

Question 35

What term refers to the shape of the hair strand?

Answer 35

Wave Pattern

Question 36

What is the cross-section shape of curly hair?

Answer 36

Oval

Question 37

Vellus hair is also known as _____ hair.

Answer 37

Lanugo

Question 38

What type of hair is short, fine, unpigmented, and downy?

Answer 38

Vellum Hair

Question 39

What are the three growth cycles of human hair?

Answer 39

Anagen, Catagen, Telogen

Question 40

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

Answer 40

Anagen

Question 41

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

Answer 41

Telogen Phase

Question 42

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

Answer 42

Alopecia Areata

Question 43

The complete loss of all body hair is known as _____.

Answer 43

Alopecia Universalis

Question 44

Temporary hair loss experienced at the end of a pregnancy is called _____.

Answer 44

Postpartum Alopecia

Question 45

What is the technical term for gray hair?

Answer 45

Canities

Question 46

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

Answer 46

Hypertrichosis

Question 47

Trichoptilosis is the technical term for _____.

Answer 47

Split Ends

Question 48

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

Answer 48

Trichorrhexis Nodosa

Question 49

What is the technical term for beaded hair?

Answer 49

Monilethrix

Question 50

What is the technical term for brittle hair?

Answer 50

Fragilitas Crinium

Question 51

What is the medical term used to describe dandruff?

Answer 51

Pityriasis

Question 52

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

Answer 52

Malassezia

Question 53

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

Answer 53

Pityriasis Steatoides

Question 54

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

Answer 54

Seborrheic Dermatitis

Question 55

What is the medical term for ringworm?

Answer 55

Tinea

Question 56

Tinea is characterized by itching scales and sometimes painful circular lesions and is caused by _____.

Answer 56

Fungal Organisms

Question 57

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

Answer 57

Tinea Favosa

Question 58

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

Answer 58

Scabies

Question 59

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

Answer 59

Pediculosis Capitis

Question 60

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

Answer 60

Furuncle

Question 61

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

Answer 61

Texture

Question 62

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

Answer 62

Coarse Hair

Question 63

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

Answer 63

Density

Question 64

The ability of the hair to absorb moisture is hair _____.

Answer 64

Porosity

Question 65

Chemical services performed on hair with low porosity require a _____ solution

Answer 65

More Alkaline

Question 66

The ability of hair to stretch and return to its original length without breaking is referred to as hair _____.

Answer 66

Elasticity

Question 67

Hair flowing in the same direction, as the result of follicles sloping in the same direction, is known as a _____.

Answer 67

Hair Stream

Question 68

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

Answer 68

Emollients