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WorksheetsHair and Scalp Properties
Total questions: 27
Worksheet time: 14mins
All of the following are living portions of hair that are below the skin surface EXCEPT
a. the hair bulb
b. the arrector pili muscle
c. the hair follicle
d. the dermal papilla
What are the two parts of a strand of human hair?
a. the root and the shaft
b. the follicle and the bulb
c. the dermal papilla and the arrector pili
d. the cuticle and the cortex
Which part of the living portion of the hair is defined as the structure in the skin or scalp that surrounds the hair root and anchors the hair in the skin?
a. the dermal papilla
b. the hair bulb
c. the arrector pili muscle
d. the hair follicle
Which portion of the hair root structure supplies nutrients so that the hair can grow?
a. the hair bulb
b. the dermal papilla
c. the arrector pili
d. the hair follicle
Each of the following is a layer of the hair shaft structure EXCEPT ______.
a. the cortex
b. the hair fiber
c. the hair cuticle
d. the medulla
Which sentence best describes the medulla?
a. The medulla is the hair’s outermost layer.
b. The medulla is a cone-shaped elevation at the base of the hair bulb.
c. The medulla is the hair’s pith or core.
d. The medulla is the fibrous protein layer of the hair.
Which layer of the hair shaft provides strength, elasticity, and color?
a. the hair cuticle
b. the hair fiber
c. the medulla
d. the cortex
What are the major chemical elements that make up human hair?
a. carbon, oxygen, hydrogen, nitrogen, and sulfur
b. proteins, water, lipids, and traces of minerals
c. amino acids and polypeptide chains
d. hydrogen bonds, side bonds, and salt bonds
Which of the following best describes how a disulfide bond in human hair is formed?
a. Oppositely charged atoms in the hair are attracted to one another to form weak physical cross-link side bonds.
b. Amino acids are chemically bonded to each other, end to end, to form a polypeptide chain.
c. Oppositely charged atoms are attracted to each other to form cross-linked side bonds between adjacent polypeptide chains.
d. 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?
a. when salt side bonds are being formed by changes in pH during chemical servicing
b. when hydrogen side bonds have been broken by the heat from a curling iron
c. when peptide bonds between amino acids are broken by a heat lamp during color processing
d. when disulfide bonds are converted to lanthionine bonds during servicing with a flat iron
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?
a. porosity
b. elasticity
c. density
d. texture
Which component of hair is defined as the thickness or diameter of an individual hair strand?
a. porosity
b. elasticity
c. texture
d. density
Which of the following can be a cause of dry hair and dry scalp?
a. overactive sebaceous glands
b. inactive sebaceous glands
c. hair follicles growing out of the head at a perpendicular angle
d. absence of melanin
Each of the following is one of the main types of body hair EXCEPT ______.
a. terminal hair
b. lanugo hair
c. vellus hair
d. anagen hair
What is the phase of the hair growth cycle in which the hair can shed?
a. catagen phase
b. nitrogen phase
c. telogen phase
d. anagen phase
In which phase of the hair growth cycle does the follicle canal shrink and detach from the dermal papilla?
a. nitrogen phase
b. telogen phase
c. anagen phase
d. catagen phase
The hair, skin, nails, and glands are part of the _____ system.
a. epidermal
b. integumentary
c. endocrine
d. lymphatic
What is the outermost layer of hair?
a. hair follicle
b. hair medulla
c. hair cuticle
d. hair cortex
Hair is approximately _____ percent protein.
a. 30
b. 50
c. 70
d. 90
A long chain of amino acids linked by peptide bonds is called a _____ chain.
a. amino-peptide
b. polymer
c. keratin
d. polypeptide
The three different types of side bonds that link chains of amino acids together are _____.
a. oxygen, hydrogen, and salt
b. hydrogen, ionic, and carbon
c. ionic, helix, and disulfide
d. hydrogen, salt, and disulfide
Which type of hair has the largest diameter and usually requires more processing?
a. terminal hair
b. coarse hair
c. medium hair
d. gray hair
The measurement that describes the number of individual hair strands on 1 square inch of the scalp is hair _____.
a. porosity
b. diameter
c. elasticity
d. density
The ability of the hair to absorb moisture is hair _____.
a. porosity
b. elasticity
c. density
d. saturation
What are the three growth cycles of human hair?
a. anagen, growth phase, and telogen
b. catagen, return, and transition
c. anagen, catagen, and telogen
d. anagen, transition, and mature
What is the growth phase during which new hair is produced?
a. genesis
b. telogen
c. anagen
d. catagen
Which of the following is true about hair?
a. Cutting hair makes it grow back faster and darker.
b. Hair growth rate is determined by genetics.
c. Scalp massages will increase hair growth.
d. Gray hair is coarser than pigmented hair.
