Study

Scalp Treatments Hair Structure

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  • Identify the layers of the hair shaft
    Cuticle, cortex, medulla
  • Identify the technical term for the study of hair?
    Trichology
  • What bonds are the weakest and broken with water or heat?
    hydrogen bonds
  • What is the technical term for hair that is black and brown?
    Eumelanin
  • What layer of the hair shaft is the melanin found?
    Cortex
  • List the side bonds in the hair?
    hydrogen, salt, disulfide
  • What is the technical term for hair that is blonde, ginger, red
    Pheomelanin
  • The hair that refers to the amount of movement in the hair stand and is described as straight, wavy, curly, and extremely curly
    Thewave pattern
  • What type of hair does not have a medulla?
    fine hair and blondes
  • What does COHNS stand for?
    Carbon, Oxygen ,Hydrogen, Nitrogen, Sulfur
  • What are amino acids?
    The protein in human hair
  • What approximant % of protein is hair made up of?
    91%
  • What bonds are the strongest and are broken with chemicals?
    disulfide bonds
  • List the structures of the hair root
    Hair follicle, Hair bulb, Dermal papilla, Sebaceous gland, Arrector pili
  • The cuticle layer does what for the hair?
    protects the inner structurer of the hair and gives it shine
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