Cortex (hair)
The cortex of the hair shaft is located between the hair cuticle and medulla
Medulla (hair)
-Importance in forensics:Hair can easily be discredited as belonging to a human with the presence of medulla. Most other mammals possess one which is easily visible under a microscope. Humans of Middle-Eastern origin, however, do, in fact, possess a thin, less visible medulla...

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.