| A | B |
|---|
| follicle | pocket that holds the hair |
| hair bulb | protects the papilla |
| hair root | part underneath the skin |
| hair shaft | part above the skin |
| papilla | reproductive eggs, cone shaped |
| sebaceous gland | produces oil, keeps hair soft |
| arrector pile | muscle that causes goose bumps |
| cortex | holds the bonds and hair color |
| cuticle | protects the hair; has an outer see-through layer |
| medulla | sometimes missing, middle layer of the hair |
| trichology | study of hair |
| integument | body system that includes skin, hair, & nails |
| hair porosity | holes in the hair (how much water it can absorb) |
| hair elasticity | how much the hair will stretch |
| hair density | thick or thin (how many hairs per square in ch on scalp) |
| hair texture | size of each hair |
| eumelanin | black or brown pigment |
| pheomelanin | blond or red pigment |
| c-o-h-n-s | elements in hair |
| melanin | color pigments |
| keratin | protein in skin and hair |
