Biology of Hair:
Hair is composed of the protein keratin, which is also the primary component of finger and toe
Hair is produced from a structure called the hair follicle. Humans develop hair follicles during
fetal development, and no new follicles
The medulla may vary in:
Continuity - one continuous structure
or broken into pieces
Opacity - how much light is able to
pass through it
It may also be absent in some species.
Like the cuticle, the medulla can be important for distinguis
More than half of all fibers used in the production of textile materials are synthetic or manmade.
Nylon, rayon, and polyester are all examples of synthetic fibers.
Hair and Fiber Identification Lab:
Your team will need to us