1What are the 3 parts of hair?
Cuticle(thin layer surrounds the core of hair), Cortex(bulk of hair, where must pigment is located), Medulla (inner core of hair, colorless and clear).
2What are the 3 sections of hair?
Tip, shaft, root.
3How can you identify the species from hair?
Scale pattern and medulla pattern.
4What does medulla make up in human and animal hair?
less than 1/3 in human hair, over 1/2 in animal hair.
5What is the scale pattern of human hair?
Imbricate
6What are the 3 growth phases of hair?
Anagen, Catagen and telogen
7When may a follicular tag be present?
Tissue or skin cells present around root, present if hair was pulled out during anagen or catagen phase.
8What can be determined from hair?
Growth phase, if forcibly removed, race, body region, post mortem, dye or hairspray present.
9How to calculate Medullary index?
Medulla diameter/shaft diameter
10What is the purpose of combing hair from corpse at crime scene?
Look for foreign hairs.