Monday, August 31, 2009

Hair and Fiber


Techniques Used to ID hair and fiber:


Hair:

-Chemical Assys: this process is used to identify substances which are in the body or not in the body

-The Root: the root of the hair is usually used for DNA testing

-Microscope: under a microscope close identifications can be made


Parts of the Hair:

-The Cuticle: this part of the hair is the outermost, we can look at this part and decide what kind of hair it is

-The Cortex: this part of the hair surrounds the medulla and makes up most of the weight of the air

-The Medulla: this is the most inner part of the hair



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