Ch 7 Milady

Question 1

What is the study of hair, including diseases and care?

Answer 1

Trichology

Question 2

Hair, skin, nails, and glands are part of what system

Answer 2

Integumentary system

Question 3

The term trichology comes from the Greek word

Answer 3

Trichos-meaning hair
Ology- meaning the study of

Question 4

A strand of human hair has two parts, the root, and the shaft what is located below the epidermis the skin outer layer

Answer 4

The hair root

Question 5

What projects above the epidermis?

Answer 5

Hair shaft

Question 6

What are tube like structure in the skin or scalp that surrounds the root and anchors the hair in the skin? These are not found on the palms of the hand or souls of the feet.

Answer 6

 hair follicle

Question 7

What is located at the base of the follicle?

Answer 7

The hair bulb and contains living cells that will form the hair strand

Question 8

What is also called hair papa Lilia is a cone shaped elevation at the base of the hair bulb. It contains blood vessels that supply nutrients that allow the hair to grow.

Answer 8

Dermal papilla

Question 9

What muscle is involuntary muscle in the dermis that attaches to the hair follicle. When this muscle attracts the hair stand straight up causing goosebumps.

Answer 9

Arrector pili muscle

Question 10

What are attached to the hair follicle they produce a substance called sebum also known as oil sebum lubricates the hair and skin

Answer 10

Sebaceous glands

Question 11

Arrector pili muscle and sebaceous glands are attached to the

Answer 11

Hair follicle

Question 12

What is also known as, the hair, strand or hair? Fiber is the nonliving portion of the hair that extends beyond the skin or scalp it consists of the cuticle cortex and medulla

Answer 12

The hair shaft

Question 13

What is the hair‘s outermost layer? It is formed from cells that overlap similar to shingles on the roof.

Answer 13

The hair cuticle

Question 14

And healthy hair the cuticle lies flat, but during a chemical service it will soften and swell, allowing the chemicals to penetrate the

Answer 14

 cortex

Question 15

What is the fibrous protein layer of the hair? It is responsible for the hair strength that elasticity and color and contributes to 90% of the hair weight.

Answer 15

Cortex

Question 16

What is also known as the hair pit or core not all hair types have one

Answer 16

Medulla

Question 17

Hair is composed primary of protein called keratin. The living cells that for the hair are found in the hairbulb. These cells go through a process called.

Answer 17

Keratininization

Question 18

Hair is approximately what percent protein

Answer 18

90

Question 19

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

Answer 19

CHONS ELEMENTS

Question 20

 amino acids linked together to end a very strong chemical bond joins them called a

Answer 20

Peptide bond, also known as an in bond as amino acids are linked by Pepto. They form a long chain called Polypeptide chain

Question 21

The cortex is made up of 1 million polypeptide chains, which are cross length like a ladders, wrong by three types of side bonds, which are

Answer 21

Hydrogen salt and disulfide bond

Question 22

What is a week physical side bond? They are easily broken by water or heat such as during wet and thermal styling when the hairdryers are cools, the bonds reform allowing thermal curls too cool before styling will hold the style longer.

Answer 22

Hydrogen bond

Question 23

What is a weak physical side bond results from attracting opposite charges they are broken by changes in pH so they are easily broken by strong, alkaline or acidic solutions

Answer 23

Salt bonds

Question 24

What is a strong chemical side bond join by Sulphur Adams up to neighboring amino acids within the polypeptide chain permanent waves and hair relaxers alter these bones

Answer 24

Disulfide

Question 25

Natural hair color is a result of a pigment called

Answer 25

Melanin

Question 26

What melanin consists of brown and black pigment for black and brown hair

Answer 26

Eumelanin

Question 27

What is the yellow two red pigment in natural blonde and red shades of hair?

Answer 27

Pheomelanin

Question 28

What refers to the amount of movement or shape of the hair strand?

Answer 28

 wave pattern

Question 29

The term hair color are two words prefers to

Answer 29

Natural hair color

Question 30

Hair color, one word means

Answer 30

Artificial

Question 31

You need a single strand of hair to determine a clients hair texture. If you can barely see the hair or you can run the hair between your thumb and index finger and can barely feel it. The hair is

Answer 31

Fine

Question 32

If the hair strand looks larger or is textured, and you can easily fill it, the hair is

Answer 32

Coarse

Question 33

What measures the number of individual hair strands on one square inch of the scalp

Answer 33

Hair density

Question 34

What refers to the hair’s ability to absorb moisture is determined by the cuticles layers condition and the degree of scales of the cuticle are raised

Answer 34

 hair porosity

Question 35

What is the hair’s ability to stretch in return to its original link without breakage?

Answer 35

Elasticity

Question 36

What occurs when hair leaves the follicles at an angle in which the hair grows into a circular pattern sometimes there is more than one

Answer 36

Whorl

Question 37

What can cause dry hair and scalp? It’s important to remember about dry hair and scalp.

Answer 37

Inactive Sebaceous glands

Question 38

There are three main types of body hair. What body hair is short fine hair that covers the fetus and normally shreds within a few weeks of birth.

Answer 38

Lanugo hair

Question 39

What is short fine unpigmented body hair Alterman referred to as peach fuzz can’t appear anywhere on the skin apart from the palm souls and lips. These do not have a sebaceous gland. Primary function is to help with the evaporation of perspiration and body temperature regulation.

Answer 39

Vellus hair

Question 40

What is long pigmented hair on the scalp and body? It’s coarser than vellus hair except for gray hair. It is pigmented and may have a medulla.

Answer 40

Terminal hair

Question 41

Hair grows in a continuous cycle that typically last 2 to 6 months what is the growth phase where new hair is produced?

Answer 41

Anagen phase

Question 42

Hair growth, rate, varies with age and gender, scalp hair grows rapidly between the ages of 15 and 30, but slows down sharply after

Answer 42

50

Question 43

What is the brief transition period between the hair, follicles growth and resting phase

Answer 43

Catagen phase The follicle canal shrinks and detached from the dermal papilla

Question 44

What is the resting phase where the hair shreds or remains in place until the next antigen phase?

Answer 44

Telogen phase  it’s common to lose 50 to 100 hairs per day