Microscope, Hair and Fiber Analysis

Find the total magnification: 
Eyepiece = 10X 
Objective lens = 55X  

• 10x
• 55x
• 65x
• 550x

The _______focuses the image under low power.

• revolving nosepiece
• fine adjustment knob
• coarse adjustment knob
• arm/neck

If you move the slide down while viewing, in which direction will it appear to move?

• right 
• left
• up 
• down

What cuticle pattern is shown?

• imbricate
• spinous
• coronal

Hair with a round cross section and a large diameter is classified as...?

• Asian
• African
• European

Generally 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 being compared to a wooden pencil, which part of hair represents the lead?

• medulla
• cortex
• cuticle
• follicular tag

The hair follicle is dormant and hairs are easily lost during which stage of the hair life cycle?

• Anagen
• Telogen
• Catagen
• Metagen

We know hair is from a human if…

• The medullary index is 0.5 or greater           
• The medullary index is 0.33 or less
• The cuticle is coronal
• The medulla is fragmented

Hair is helpful in solving old crimes because…

• hair on a suspect never changes
• hair always contains DNA evidence
• hair takes little room to store in evidence closets
• hair does not easily decompose