Hair Analysis: Day Two

The region of a hair located outside of the medulla containing granules of pigment. (wood part of pencil in our example)

• Cuticle

• Medulla

• Cortex

The tough outer covering of a hair composed of overlapping scales. (outer part of pencil in our example)

• Cortex

• Cuticle

• Medulla

The following medulla pattern is called

• fragmented 
• continuous
• interrupted

The central core of the hair is called the...?

• Medulla
• Cuticle
• Cortex
• Shaft

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

What is the type of cuticle scale shown here?

• Imbricate

• Coronal

• Spinous

• Caucasian

What is the type of cuticle scale shown here?

• Imbricate

• Coronal

• Spinous

• Caucasian

What is the type of cuticle scale shown here?

• Imbricate

• Coronal

• Spinous

• Caucasian

Which feature(s) help identify racial origin of hair?

• Shaft diameter

• Pigment

• Cross-section

• All of the above

Which racial origin would be indicated by coarse shaft diameter and round cross section?

• Asian ancestry

• African ancestry

• Caucasian Ancestry

• All of the above