Terms : Hide Images
| 7652733106 | Cuticle | Outside covering of overlapping scales |  | 0 |
| 7652733107 | Cortex | Inner layer made of keratin and imbedded with pigment also contains air sacs called cortical cusi |  | 1 |
| 7652733108 | Medulla | Inside layer running down the center of the cortex |  | 2 |
| 7652733109 | Melanin pigment | Granules that give hair it's color | 3 | |
| 7652733110 | Human medulla may be | Continuous, fragmented, or absent | 4 | |
| 7652733111 | Medullary index for humans is usually | Less than 1/3 |  | 5 |
| 7652733112 | For animal hair the medullary index is usually | Greater than 1/2 | | 6 |
| 7652733113 | Anagen | Hair that is actively growing; lasting 3 to 5 years 80% to 90% of a persons hair will be in this phase |  | 7 |
| 7652733114 | Catagen | Hair is not growing; a resting phase | | 8 |
| 7652733115 | Telogen | Hair that is dying and ready to fall out lasting 2 to 6 months | | 9 |
| 7652733116 | Hair grows about | 1 cm per month or one half inch per month | 10 | |
| 7652733117 | Comparison Microscope | a device used to analyze side-by-side specimens. It consists of two microscopes connected by an optical bridge, which results in a split view window enabling two separate objects to be viewed simultaneously. |  | 11 |
