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Hair Structure
Anatomy of Hair
Vocabulary
Miscellaneous
Fibers
100
The outer coating of hair that is composed of overlapping scales.
What is the cuticle?
100
Hair grows out of this part.
What is the follicle?
100
The study of the form and structure of organisms.
What is morphology?
100
This type of hair has a thicker medulla.
What is an animal hair?
100
This type of fiber comes from plants and animals.
What are natural fibers?
200
This part of the hair takes up < ⅓ of hair in humans and > ½ in animals.
What is the medulla?
200
Only one of these is needed for a good DNA sample.
What is a root?
200
A substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together.
What is a polymer?
200
These types of fibers have this medulla.
What are none?
200
More than half of all fibers in textile production are this type of fiber.
What are synthetic fibers?
300
This protein-rich structure is constructed around the medulla and contains pigments.
What is the cortex?
300
This part of the hair is not useful in distinguishing between different people.
What is a cuticle/medulla?
300
A fibrous protein forming the main structural constituent of hair and nails.
What is keratin?
300
Keratin composes nails and hair in addition to these body parts.
What are ears and nose.
300
A cellulose fiber that burns and continues to glow. It gives out smell like that of a burning paper.
What is cotton?
400
This type of human hair contains more medulla than normal.
What is leg/chest hair?
400
This the primary contributor to DNA analysis by hair.
What is blood?
400
A dark brown to black pigment occurring in the hair and skin.
What is melanin?
400
This material composes up synthetic fibers.
What is plastic?
400
A manufactured cellulose fiber that burns without flame and smells like burning paper.
What is rayon?
500
These irregular spindle-shaped (long and pointy on both ends) air pockets are in the cortex.
What are cortical fusi?
500
Hair and fingernails are composed from this material.
What is keratin?
500
||Daily Double|| The active growth phase when hair fiber is produced.
What is the Anagen phase?
500
Bleaching your hair actually does this to the cortex.
What is remove all color?
500
A protein fiber which burns quickly and leaves a hard, brittle bead.
What is acetate?