Hair and Fiber Analysis

The deepest layer of hair (compared to the lead of a pencil) is the ___

• medulla
• cortex
• cuticle
• keratin 

The middle layer of a hair (compared to the wood of a pencil) is the __

• medulla
• cortex
• cuticle
• keratin

The outside layer of a hair (compared to the ink on a pencil) is the ___

• medulla
• cortex
• cuticle
• keratin

Which is NOT a characteristic of the medulla that varies and therefore should be observed?

• scales
• opacity 
• thickness
• continuity 

Which of the following is NOT one of the characteristics of the cuticle that varies and should be observed?

• scales

• continuity

• size

• thickness

The name for man-made fibers is:

• processed fibers
• synthetic fibers
• natural fibers
• modified fibers

Which of the following types of medullas are NOT commonly found in human hair?

• continuous
• absent
• interrupted
• fragmented

Hair analysis may be used to determine all of the following except:

• manner in which the hair was removed
• body region from which the hair came from
• broad racial background of the individual from which the hair came from
• identity of the individual from which the hair came from

When fibers are transferred directly from victim to suspect or suspect to victim, this is called:

• necessary transfer.
• direct transfer
• absolute transfer.
• None of these choices.

Fibers are classified as either:

• natural fibers or synthetic fibers.
• polymers or synthetic fibers.
• acrylic fibers or plant fibers.
• olefins or synthetic fibers