Here:
Head Hairs
* Long with moderate shaft diameter and diameter variation
* Medulla absent to continuous and relatively narrow when compared to the structure of hairs from other body areas
* Often with cut or split tips
* Can show artificial treatment, solar bleaching, or mechanical damage
* Soft texture, pliable
Pubic Hairs
* Shaft diameter coarse with wide variations and buckling (Figure 30)
* Medulla relatively broad and usually continuous when present (Figure 31)
* Root frequently with tag (Figure 32)
* Tip usually tapered, rounded, or abraded
* Stiff texture, wiry
Limb Hairs
* Diameter fine with little variation
* Gross appearance of hair is arc-like in shape
* Medulla is discontinuous to trace with a granular appearance (Figure 33)
* Tips usually tapered, often blunt and abraded, rounded scale ends due to wear (Figure 34)
* Soft texture
Picture here
http://www.fbi.gov/hq/lab/fsc/backissu/jan2004/research/2004_01_research01b.htm