Compléter Ch 11 Properties of Hair & Scalp (D)Version en ligne Chemical Composition par Shawanna Whidbee 1 follicle composed originating protein Hair is of that grows from cells within the hair . 2 cells keratinization maturation The of these is called . 3 nails skin elements elements COHNS five Together , the that make up human hair are referred to as the to help people remember them ; they are also found in the and the . 4 bond cross dries hydrogen broken water link heat A is a weak , physical , - side bond that is easily by or ; these bonds reform when the hair . 5 side Weak bonds polypeptide salt bonds , physical , cross - linked between adjacent chains are . 6 permanent waves bonds disulfide chemical relaxers The hairs strongest side bonds ; are broken through and . 7 Pheomelanin Eumelanin Melanin pigment are the tiny grains of in the cortex that give natural color to the hair ; and . 8 wave straight curly pattern wavy shape extremely The of hair refers to the of the hair strand and is described as , , , or curly . 9 varying Native Asian curly curl African straight extremely anyone extremely and Americans tend to have hair , while American ? s tend to have hair ; however of any race , or mixed race can have hair with degrees of . 10 curly elasticity often low Extremely hair has .