Figure 4
Schematic representation of a hair section showing the three structural zones. The dotted lines show the almost parallelepipedic shape obtained after cutting the sample for the perpendicular geometry analyses. The cuticle is represented though it has not been convincingly detected by microdiffraction. The diameter of the two outer zones is almost independent of hair diameter, whereas the core diameter is not. Positions (a), (b), (c) and (d) corresponding to the patterns of Fig. 5 are also indicated. |