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Hair Structure
Your hair are
important contributors to your total look and given the right care they can make
you look great. If neglected they can distract one from your appearance.
Hair, is an
integral part of the structure of your skin and like your skin, it changes with
passage of time.
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A single
strand of hair is made up of several components:-
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The hair
shaft: The visible part of the hair is dead. It grows from the narrow tube
below the surface of the scalp which is called a follicle.
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The hair
follicle: (sac)- is the portion of hair below the skin's surface, is a
single structure which lives and grows at an average rate of 1-3 centimeters
(1/2 to 1") per month.
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At the base
of hair follicle lie papilla, which eventually form hair.
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Sebaceous
glands: Next to each follicle produce natural oil that keeps the hair
lubricated and shiny.
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The hair
extends through epidermis into the dermis, from where it receives its blood
supply and sensitivity.
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