El Dorado Cosmetology: Scalp And Hair! Quiz

98 Questions | Total Attempts: 164

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El Dorado Cosmetology: Scalp And Hair! Quiz

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Questions and Answers
  • 1. 
    The branch of science that focuses on the hair, its diseases, and its care is called:
    • A. 

      Biology

    • B. 

      Dermatology

    • C. 

      Trichology

    • D. 

      Hairology

  • 2. 
    The two main divisions of the hair are the hair shaft and the:
    • A. 

      Hair Root

    • B. 

      Follicle

    • C. 

      Bulb

    • D. 

      Arrector Pili

  • 3. 
    The hair root is made up of three main structures, the follicle, bulb, and:
    • A. 

      Hair Stream

    • B. 

      Medulla

    • C. 

      Dermal Papilla

    • D. 

      Cuticle

  • 4. 
    The follicle is the tube-like depression in the skin that contains the:
    • A. 

      Hair Shaft

    • B. 

      Cuticle

    • C. 

      Hair Root

    • D. 

      Sabaceous Gland

  • 5. 
    The lower part of the hair root is the club-shaped:
    • A. 

      Arrector Pili

    • B. 

      Hair Shaft

    • C. 

      Dermal Papilla

    • D. 

      Hair Bulb

  • 6. 
    The dermal papilla contains the blood and nerve supply that provides:
    • A. 

      Pheomelanin

    • B. 

      Sebum

    • C. 

      Eumelanin

    • D. 

      Nutrients

  • 7. 
    At the base of the follicle is a tiny involuntary muscle called the:
    • A. 

      Arrector Pili

    • B. 

      Dermal Papilla

    • C. 

      Orbicularis Oculi

    • D. 

      Medulla

  • 8. 
    The sabaceous glands secrete a substance called:
    • A. 

      Keratin

    • B. 

      Lymph

    • C. 

      Melanin

    • D. 

      Sebum

  • 9. 
    The hair shaft is made up of three layers; the cuticle, cortex, and:
    • A. 

      Root

    • B. 

      Bulb

    • C. 

      Follicle

    • D. 

      Medulla

  • 10. 
    A healthy, compact cuticle serves as the hair's:
    • A. 

      Source of Melanin

    • B. 

      Nerve Supply

    • C. 

      Primary Defense

    • D. 

      Source of Nutrients

  • 11. 
    The layer of hair is generally only present in thick, coarse hair is the:
    • A. 

      Dermal Papilla

    • B. 

      Medulla

    • C. 

      Cortex

    • D. 

      Cuticle

  • 12. 
    The cortex accounts for about ____ of the total weight of the hair.
    • A. 

      50%

    • B. 

      90%

    • C. 

      25%

    • D. 

      10%

  • 13. 
    Swelling the hair raises the ____ and allows liquids to penetrate.
    • A. 

      Root

    • B. 

      Medulla

    • C. 

      Cortex

    • D. 

      Cuticle

  • 14. 
    Permanent haircolors, perm solutions, and chemical relaxers must have an alkaline pH in order to:
    • A. 

      Penetrate the Cuticle Layer

    • B. 

      Penetrate the Medulla

    • C. 

      Remove the Cortex

    • D. 

      Remove the Cuticle Layer

  • 15. 
    Permanent waving, chjemical relaxing, and oxidation haircoloring cause changes that occur in the:
    • A. 

      Cuticle

    • B. 

      Roots

    • C. 

      Cortex

    • D. 

      Medulla

  • 16. 
    By the time the hair shaft emerges from the scalp, its cells are keranitinized and:
    • A. 

      Are Actively Reproducing

    • B. 

      Have Retained Their Nucleus

    • C. 

      Are No Longer Living

    • D. 

      Live Several More Years

  • 17. 
    Hair is made up of five elements; carbon, nitrogen, hydrogen:
    • A. 

      Oxygen and sulfur

    • B. 

      Copper and oxygen

    • C. 

      Oxygen and sodium

    • D. 

      Sulfur and chlorine

  • 18. 
    Of tyhe five elements in human hair, the element that makes up the lowest percentage is:
    • A. 

      Sulfur

    • B. 

      Nitrogen

    • C. 

      Carbon

    • D. 

      Oxygen

  • 19. 
    Amino acids are linked together by chemical bonds called:
    • A. 

      Hydrogen bonds

    • B. 

      Peptide bonds

    • C. 

      Side bonds

    • D. 

      Salt bonds

  • 20. 
    Side bonds account for the hair's:
    • A. 

      Color

    • B. 

      Elasticity

    • C. 

      Porosity

    • D. 

      Fragility

  • 21. 
    Polypeptide chains are cross-linked together by these side bonds:
    • A. 

      Disulfide, bisulfide, and salt bonds

    • B. 

      Hydrogen, salt, and disulfide bonds

    • C. 

      Polypeptide, hydrogen, and salt bonds

    • D. 

      Salt, hydrogen, and peptide bonds

  • 22. 
    Compared to hydrogen and salt bonds, disulfide bonds are:
    • A. 

      Stronger

    • B. 

      More easily broken

    • C. 

      More numerous

    • D. 

      Weaker

  • 23. 
    Cystine is created when a disulfide bond joins the ____ atoms of twoo neighboring cysteine amino acids.
    • A. 

      Nitrogen

    • B. 

      Sulfur

    • C. 

      Carbon

    • D. 

      Hydrogen

  • 24. 
    Permanent waving and chemical hair relaxing change the shape of the hair by chemically changing the:
    • A. 

      Peptide bonds

    • B. 

      Salt bonds

    • C. 

      Hydrogen bonds

    • D. 

      Disulfide bonds

  • 25. 
    The agents that easily break hydrogen bonds are:
    • A. 

      Chemical relaxers

    • B. 

      Water or heat

    • C. 

      Changes in pH

    • D. 

      Permanent waves

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