Cosmetology Semester Exam Review Questions and Answers
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Course
NC Cosmetology
Institution
NC Cosmetology
The scientific study of hair, it's diseases, and care is called: - Answer-Trichology
The two parts of a mature hair strand are the hair shaft and: - Answer-Hair root
The portion of hair that projects above the skin is the: - Answer-Hair shaft
The follicle, bulb, papilla, arrector pili musc...
Cosmetology Semester Exam Review
Questions and Answers
The scientific study of hair, it's diseases, and care is called: - Answer-Trichology
The two parts of a mature hair strand are the hair shaft and: - Answer-Hair root
The portion of hair that projects above the skin is the: - Answer-Hair shaft
The follicle, bulb, papilla, arrector pili muscle, and sebaceous glands are main
structures of the: - Answer-Hair root
The tubelike depression or pocket in the skin or scalp that contains the hair root is the: -
Answer-Follicle
Hair follicles are not found on the palms of the hands or the: - Answer-Soles of the feet
The follicle extends downward from the epidermis, where it surrounds the: - Answer-
Dermal papilla
The lowest area or part of the hair strand is the: - Answer-Hair bulb
A small, cone/shaped area at the base of the hair follicle that fits into the hair bulb is the:
- Answer-Dermal papilla
A tiny, involuntary muscle fiber inserted in the base of the hair follicle is the: - Answer-
Arrector pili
The oil glands of the skin connected to the hair follicles are: - Answer-Sebaceous
glands
An oily substance secreted from the sebaceous glands is: - Answer-Sebum
The overlapping layer of hair with transparent, scalelike cells is the: - Answer-Cuticle
The three main layers of the hair shaft are the cuticle, medulla, and: - Answer-Cortex
Swelling the hair raises the cuticle layer and allows for: - Answer-Penetration
For chemicals to penetrate a healthy cuticle layer, they must: - Answer-Have an alkaline
pH
The fibrous protein core of the hair, formed by elongated cells containing melanin
pigment, is the: - Answer-Cortex layer
, The medulla is the innermost layer of the hair and is composed of: - Answer-Round
cells
Hair is composed of a protein that grows from cells originating within the: - Answer-Hair
follicle
The process whereby living cells mature and begin their journey up the hair shaft is: -
Answer-Keratinization
The five main elements that make up the chemical composition of human hair are
carbon, oxygen, hydrogen, and: - Answer-Nitrogen and sulfur
The chemical bonds that hold together the amino acid molecules are: - Answer-Peptide
bonds
An end bond is also known as a: - Answer-Peptide bond
When peptide bonds hold together a very long chain of amino acids, it is called a: -
Answer-Polypeptide chain
The three types of cross-links that form the bonds between the polypeptide chains are
hydrogen bonds, salt bonds, and: - Answer-Disulfide bonds
A weak type of physical side bond that is easily broken by water or heat is a: - Answer-
Hydrogen bond
A salt bond is easily broken with the use of: - Answer-Strong alkaline or acidic solutions
Bonds that must be chemically separated are: - Answer-Disulfide bonds
Hydrogen chemical hair relaxers break disulfide bonds during rinsing convert them to: -
Answer-Lanthionine bonds
The natural hair pigment found in the cortex layer of the hair is: - Answer-Melanin
Two different types of melanin are eumelanin and: - Answer-Pheomelanin
Natural wave patterns are the result of: - Answer-Genetics
Asians tend to have: - Answer-Extremely straight hair
Extremely curly hair grows: - Answer-In long twisted spirals
To help minimize tangles in extremely curly hair when washing, you should use: -
Answer-A detangling rinse
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