close
    hair and colour

    why does hair grow, and where does the colour come from.

    0  Views: 1391 Answers: 1 Posted: 14 years ago
    Tags: hair

    1 Answer

    Hair is a protein made of a follicle, root and bulb. The follicle is deep in the skin & is attached to a tiny sebaceous gland and muscle fiber. Hair grows when the follicle gathers a "bundles" old cells. The sebaceous gland and muscle fiber push the bundles of old cells up through the skin in a root sheath. The sheath has an internal and external layer. The external layer contains RNA that gives the hair its color and texture. The internal layer contains the hair fiber.



    Top contributors in Other - Beauty & Style category

     
    FISH-O
    Answers: 24 / Questions: 0
    Karma: 3840
     
    jhharlan
    Answers: 32 / Questions: 0
    Karma: 3285
     
    Benthere
    Answers: 2 / Questions: 0
    Karma: 2940
     
    Bob/PKB
    Answers: 22 / Questions: 1
    Karma: 2565
    > Top contributors chart

    Unanswered Questions

    Lẩu Thái TV5
    Answers: 0 Views: 7 Rating: 0
    Hữu Đạo
    Answers: 0 Views: 7 Rating: 0
    tinhoc coban
    Answers: 0 Views: 12 Rating: 0
    4233betorg
    Answers: 0 Views: 10 Rating: 0
    Phòng Khám Ngoại Số 10 Trần Điền
    Answers: 0 Views: 12 Rating: 0
    Ngành ngôn ngữ trung
    Answers: 0 Views: 14 Rating: 0
    Soi Cầu 247 Net
    Answers: 0 Views: 14 Rating: 0
    > More questions...
    526380
    questions
    759407
    answers
    873417
    users