| A | B |
|---|
| comparison microscope | microscope where two samples are shown on the screen side by side,  |
| hair cuticle | the transparent outer protective coating of hair,  |
| hair follicle | the sheath of cells wrapped around the hair shaft,  |
| medulla | the center pattern of cells in a hair shaft,  |
| melanin granules | the areas of pigment that give hair its color,  |
| imbricate | the pattern of a human hair cuticle |
| stages of hair growth | Anagen Catagen Telogen,  |
| trace evidence | small bits of evidence,  |
| pencil | represents the three parts of hair,  |
| body temperature | hair is responsible for controlling this |
| sebaceous gland | oil producer to protect hair,  |
| epidermis | skin layer just below the surface |
| medullary index | ratio of diameter of hair to diameter of medulla |
| Stages of hair growth | ACT |
| Gas Chromatography | method of separating chemicals to establish quantities |
| isotope analysis | procedure used to determine elements and compounds in hair,  |
| keratin | strong protein that makes up hair and nails |
