Ch.11 Properties Of The Hair And Scalp

Front 1

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

Back 1

Trichology

Front 2

The two parts of a mature strand of human hair are the:

Back 2

Hair root and hair shaft

Front 3

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

Back 3

Follicle

Front 4

Hair follicles are not found on the:

Back 4

Sole of the feet

Front 5

The ______ is a tiny, involuntary muscle in the base of the hair follicle.

Back 5

Arrector pili

Front 6

An oily substance secreted from the sebaceous glands is:

Back 6

Sebum

Front 7

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

Back 7

An alkaline pH

Front 8

The medulla is composed of _____ cells.

Back 8

Round

Front 9

The process whereby living cells mature and begin their journey up the hair shaft is:

Back 9

Keratinization

Front 10

The five main elements that make up the chemical composition of human hair are carbon, oxygen, hydrogen, and:

Back 10

Nitrogen and sulfur

Front 11

The chemical bonds that hold together the amino acid molecules are called:

Back 11

Peptide bonds

Front 12

Which type of melanin provides natural colors ranging from red and ginger to yellow and blond tones?

Back 12

Pheomelanin

Front 13

Asians tend to have:

Back 13

Extremely straight hair

Front 14

To help minimize tangles in extremely curly hair when washing, you should use:

Back 14

A detangling rinse

Front 15

Hair texture is classified as:

Back 15

Coarse, medium, or fine

Front 16

The measurement of individual hair strands on 1 square inch (2.5 square centimeters) of the scalp is:

Back 16

Hair density

Front 17

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

Back 17

More alkaline solution

Front 18

Wet hair with normal elasticity will stretch up to _____ of its original length.

Back 18

50%

Front 19

Oily scalp and hair can be treated by properly washing it:

Back 19

With normalizing shampoo

Front 20

Vellus hair almost never has what?

Back 20

A medulla

Front 21

The growth phase during which new hair is produced is:

Back 21

Anagen

Front 22

The average growth of healthy scalp hair is:

Back 22

1/2 inch (1.25 cm) per week

Front 23

The technical term used to describe gray hair is:

Back 23

Canities

Front 24

A condition of abnormal hair growth on areas of the body is:

Back 24

Hypertrichosis

Front 25

The medical term for dandruff is:

Back 25

Pityriasis

Front 26

The body can produce 11 of the 30 ______ that make up hair.

Back 26

Amino acids

Front 27

Salt bonds account for about _______ of the hair's overall strength.

Back 27

1/3

Front 28

The anagen phase generally lasts from three to five:

Back 28

Years

Front 29

Scalp hair grows _________ on women then on men.

Back 29

Faster

Front 30

The _________ phase signals the end of the growth phase.

Back 30

Catagen

Front 31

Scalp massage ______ hair growth

Back 31

Does not affect

Front 32

Compared to pigmented hair, gray hair is:

Back 32

Neither coarser nor more resistant

Front 33

Cross-sections of hair:

Back 33

Can be almost any shape

Front 34

Bald men are commonly perceived as:

Back 34

Less successful

Front 35

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

Back 35

40

Front 36

Finasteride is an oral prescription medication for hair loss that is meant for:

Back 36

Men ONLY

Front 37

Congenital canities manifest:

Back 37

At or before birth

Front 38

Dandruff can easily be mistaken for:

Back 38

Tinea

Front 39

Dandruff is believed to be caused by a:

Back 39

Fungus

Front 40

The most frequently encountered fungal infection resulting from hair services is:

Back 40

Tinea barbae

Front 41

Tinea is characterized by:

Back 41

Itching

Front 42

The infestation of hair and scalp with head lice is called:

Back 42

Pediculosis capitis

Front 43

A carbuncle is similar to a furuncle, but is:

Back 43

Larger

Front 44

Fine hair is ________ than coarse or medium hair.

Back 44

More fragile

Front 45

Coarse hair:

Back 45

Is stronger than fine hair

Front 46

The ________ is the outermost layer of the hair.

Back 46

Hair cuticle

Front 47

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

Back 47

Sebaceous

Front 48

A ______ bond is a physical bond easily broken by water or heat.

Back 48

Hydrogen

Front 49

Hair is approximately ________ percent protein.

Back 49

90

Front 50

Total scalp hair loss is known as:

Back 50

Alopecia totalis

Front 51

Hypertrichosis is also known as:

Back 51

Hirsuties

Front 52

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

Back 52

Malassezia

Front 53

The ________ is the lowest part of the hair strand.

Back 53

Hair bulb

Front 54

The technical term for beaded hair is:

Back 54

Monilethrix

Front 55

A highly contagious skin disease cause by a parasite called a mite that burrows under the skin is:

Back 55

Scabies

Front 56

The term for spiral shaped coiled protein is:

Back 56

Helix

Front 57

Shaving, clipping, and cutting the hair on the head:

Back 57

Has no effect on hair growth

Front 58

Dry, sulfer-yellow, cup-like crusts on the scalp called:

Back 58

Scutula

Front 59

The _________ are part of the integumentary system.

Back 59

Hair, skin, nails, and glands

Front 60

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

Back 60

Terminal hair

Front 61

The technical term for knotted hair is:

Back 61

Trichorrhexis nodosa

Front 62

The ______ is the innermost layer of the hair.

Back 62

Medulla

Front 63

Hair that forms in a circular pattern on the crown of the head is called:

Back 63

Whorl

Front 64

The part of the hair located below the surface of the epidermis is the:

Back 64

Hair root

Front 65

A tuft of hair that stands straight up is a:

Back 65

Cowlick

Front 66

The ability of the hair to absorb moisture is called:

Back 66

Hair porosity

Front 67

The middle layer of the hair is the:

Back 67

Cortex

Front 68

An autoimmune disorder that causes affected hair follicles to be mistakenly attacked by a person's own immune system is:

Back 68

Alopecia areata

Front 69

Vellus hair is also known as:

Back 69

Lanugo hair

Front 70

The medical term for ringworm is:

Back 70

Tinea favosa