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Hairs and Fibers
| Question | Answer |
|---|---|
| Trace Evidence | Any very small physical material that can be transferred from person-person, or between a person and a crime scene. |
| Cortex | The largest portion of the shaft giving you your natural hair color. |
| Cuticle | The layer of cells that cover the surface of the shaft and look like scales on a fish or even roofing tiles. |
| Medulla | Cells that run down the center of the cortex like a canal. |
| Mineral Fiber | Think Earth, glass, asbestos. |
| Animal Fiber | Silk, wool, fur. |
| Vegetable Fibers | Cotton, linen, hemp. |
| Synthetic Fibers | Rayon, nylon, acetate. |
| The 4 Tests used to identify fibers | Burn test, solvent/solubility test, stain test, microscopic test. |
| The 2 collection methods: | The Tape method, and the sweeping/vacuuming method. |
| Looking for fibers: besides clothing, | Rugs, drapes, couches, pillows, etc. |
| The scales of a cuticle: | Coronal: crownlike, Spinous:petalike, triangular shape, Imbricate: flattened, what humans have. |
| The study of hair is: | Trichology |
| The hair that provides the most features for comparison: | Scalp Hair |