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WorksheetsHair and Scalp Properties
Total questions: 25
Worksheet time: 15mins
Which of the following reason cosmetologists should understand hair and scalp properties?
Identifying the shape of hair follicles can help when recommending methods to make client's hair grow faster
Identifying the cause of a dry or oily scalp helps to better recommend medication to the client to alleviate the condition
Identifying hair growth cycles and the differences between common and uncommon hair loss will help when recommending hair loss treatments to the client
Identifying the elasticity of hair helps to better determine treatments to soften coarse gray hairs to match the texture of the client's pigmented hair
All of the following are living portions of hair that are below the skin surface EXCEPT ____________
the hair bulb
the arrector pili muscle
the hair follicle
the dermal papilla
Each of the following is a layer of the hair shaft structure EXCEPT ___________
the cortex
the hair fiber
the hair cuticle
the medulla
Which portion of the hair root structure supplies nutrients so that the hair can grow?
the hair bulb
the dermal papilla
the arrector pili
the hair follicle
Which sentence best describes the medulla?
The medulla is the hair's outermost layer
The medulla is a cone-shaped elevation at the base of the hair bulb
The medulla is the hair's pith or core
The medulla is the fibrous protein layer of the hair
Which layer of the hair shaft provides strength, elasticity, and color?
the hair cuticle
the hair fiber
the medulla
the cortex
What are the major chemical elements that make up human hair?
carbon, oxygen, hydrogen, nitrogen, and sulfur
proteins, water, lipids, and traces of minerals
amino acids and polypeptide chains
hydrogen bonds, side bonds, and salt bonds
Which of the following best describes how the disulfide bond in human hair is formed?
Oppositely charged atoms in the hair are attracted to one another to form weak physical cross-link side bonds
Amino acids are chemically bonded to each, end to end, to from a polypeptide chain
Oppositely charged atoms are attracted to each other form cross-linked side bonds between adjacent polypeptide chains
Sulfur atoms on neighboring cysteine amino acids within polypeptide chains in the hair join
Which of the following is a situation in which a cosmetologist would allow the hair to cool before styling?
When salt side bonds are being formed by changes in pH during chemical servicing
When hydrogen side bonds have been broken by the heat from a curling iron
When peptide bonds between amino acids are broken by a heat lamp during color processing
When disulfide bonds are converted to lanthionine bonds during servicing with a flat iron
What is the outmost layer of hair?
hair follicle
hair medulla
hair cuticle
hair cortex
If a cosmetologist holds a strand of hair with one hand while sliding the other hand's thumb and forefinger from the end of the strand to the client's scalp, what component of the hair is being analyzed?
porosity
elasticity
density
texture
Which component of hair is defined as the thickness or diameter of an individual hair strand?
porosity
elasticity
texture
density
Which of the following can be a cause of dry hair and scalp?
overactive sebaceous glands
inactive sebaceous glands
hair follicles growing out of the head at a perpendicular angle
absence of melanin
Which of the following best describes a procedure a cosmetologist could use to determine how quickly hair will process during chemical servicing?
Feel a strand of hair to determine the hair's texture
Consider how much of the scalp is visible to determine how many hairs there are on each square inch of the scalp
Examine the shape of a cross-section of a strand of hair to determine the wave pattern
Determine the slope of the hair follicles to identify the hair growth pattern
Which statement best describes what may have happened to cause a client's hair to grow ina whorl pattern?
he hair in the whorl has a rasied cuticle, whereas the surrounding hair does not
The stands of hair in the whorl are oily due to overactive sebaceous glands
The strands of hair in the whorl are leaving the follicles at an angle different from the surrounding hairs
The strands of hair in the whorl are less elastic than the surrounding hair as a result of damage from a thermal styling tool
Each of the following is one of the main types of body hair EXCEPT _____________.
terminal hair
lanugo hair
vellus hair
anagen hair
Hair is approximately ________ percent protein.
30
50
70
90
The three different types of side bonds that link chains of amino acids together are _____________.
oxygen, hydrogen, and salt
hydrogen, ionic, and carbon
ionic, helix, and disulfide
hydrogen, salt, and disulfide
What is the phase of the hair growth cycle in which the hair can shed?
catagen phase
nitrogen phase
telogen phase
anagen phase
In which phase of the hair growth cycle does the follicle canal shrink and detach from the dermal papilla?
nitrogen phase
telogen phase
catagen phase
anagen phase
Which of the following conclusions can a cosmetologist make if a client expresses concern about not being able to grow hair beyond shoulder length?
The anagen phase of the client's hair growth is shorter than the anagen phase in other people's hair growth, so the client's hair will not grow any longer
The catagen phase of the client's hair growth occurs more quickly than that phase in other people's hair growth, so the client's hair stops growing
The client has a larger amount of vellus hair than terminal hair, so the client sheds most hair strands before they can grow long
The client has primarily lanugo hair, which is shed more frequently than vellus hair or terminal hair
A long chain of amino acids linked by peptide bonds is called a __________ chain.
amino-peptide
polymer
keratin
polypeptide
The measurement that describes the number of individual hair strands on 1 square inch of the scalp is hair ___________.
porosity
diameter
elasticity
density
The ability of the hair to absorb moisture is hair __________.
porosity
elasticity
density
sturation
Which type of hair has the largest diameter and usually requires more processing?
terminal hair
coarse hair
medium hair
gray hair
