Chapter 11 Test Questions Flashcards
0
Q
- The main component of the hair is a ________ called keratin.
A
Protein
1
Q
- Trichologogy is the scientific study of ____ including its care and disorders.
A
Hair
2
Q
- The part of the hair that extends above the skin surface is the ______.
A
Hair shaft
3
Q
- The demal papilla is surrounded by the _________.
A
Hair follicle
4
Q
- Hairs natural tendency to flow to one side is called the ________
A
Hair stream
5
Q
- The hair bulb is the ______
A
Lower part if the hair root
6
Q
- The arrector pilli is a minute _____ in the skin attached to the underside and base of the hair follicle
A
Involuntary muscle fiber
7
Q
- The hair shaft consist of _______ main shafts.
A
Three
8
Q
- Sweeping the hair raises the ______ of the cuticle layer and opens the space between them allowing liquid to penetrate.
A
Scales
9
Q
- Oxidation tints and other chemical hair products must have a pH _______
A
Above 7.0
10
Q
- The ________ accounts for about 90 percent of the hairs weight
A
Cortex
11
Q
- Hair that is missing the medulla is ________
A
Naturally Blond
12
Q
- Hair ______ mature in a process called keratinization.
A
Shafts
13
Q
- The element in human hair ______ are sulfur, Carbon, oxygen, hydrogen, and nitrogen.
A
Skin
14
Q
15 _________ are made up of amino acids
A
Proteins
15
Q
- The strongest chemical bond in the cortex are ________ bonds.
A
Peptide
16
Q
- When __________ bonds are broken through over stretching or the use of strong acidic or alkaline solutions, the human hair can be weakened or damaged to the point of breakage.
A
Even a few
17
Q
- Hydrogen bonds add__________ to the hair and keep parallel polypeptide chains together.
A
Body
18
Q
- Hydrogen bonds may be broken by _______
A
all answers are correct
19
Q
- Disulfide bonds are the _______ side bonds in the cortex
A
Strongest
20
Q
- The atom of neighboring _______ amino acids that are joined together by disulfide bonds are atoms of sulfur
A
Cystine
21
Q
- Black and brown hair color are provided by ________
A
Eumelanin
22
Q
- Red through light blond color hair is provided by __________
A
Pheomelanin
23
Q
- Blonds must have approximately _______ hairs on the head.
A
140,000
24
Q
- Vellus or lanugo hair is _________ and appears nearly everywhere on the body
A
Short and fine
25
Q
- Hair growth is not increased by any of the following except________.
A
The time of the year
26
Q
- At any given time, about _______ percent of scalp hair is growing.
A
90
27
Q
- Hair texture is measured by the diameter of the hair strand and is classified as coarse ________ or fine.
A
Medium
28
Q
- Hair with a ______ texture has the largest diameter
A
Coarse
29
Q
- Fine hair _________
A
Is most likely to be damaged by chemical services
30
Q
- Density is the number of hair strands _________ on the scalp
A
Per square inch
31
Q
- The hairs ________ is the ability to absorb moisture .
A
Porosity
32
Q
- Wet hair with __________ elasticity can stretch up to fifty percent of its original length and return to that length without breaking.
A
Normal
33
Q
- Dandruff is technically known as _____
A
Pityriasis
34
Q
- __________ that stick to the scalp in patches are characteristics of Pityriasis steataides
A
Greasy or waxy scalp
35
Q
- Is a fungal infection that occurs chiefly over the bearded area
A
Tinea sycosis
36
Q
- _________ on the scalp are symptoms of Tinea favosa
A
Dry, sulfur - yellow, cuplike crust
37
Q
- Animal parasites cause ______ and scabies.
A
Pediculosis capatis
38
Q
- The technical name for a _______ is furuncle
A
Boil
39
Q
- Brittle hair is technically know as _________
A
Fragilitas crinium
