Bölüm anahatları

  • hairs are composed of three main types of cell: cuticle, cortical and medulla. If a hair is envisaged as a pen- cil, the central graphite column of the pencil is the medulla, the wood surrounding the graphite is the cortex, and the paint on the outside is the cuticle.  Each area provides information about the hair and can contain distinguishing fea- tures.