Chp 11 Trace Evidence test review

Which of the following is not a layer of the hair shaft?

• Follicle

• Cuticle

• Scales

• Cortex

Which part of the hair is most resistnat to chemical decomposition?

• Cuticle

• Medulla

• Follicle

• Root

Which feature of hair is MOST important in makin a species identification?

• Scale Pattern

• Follicle Shape

• Bulb Size

• Shaft Length

The number of hair scales pointing towards the tip of the hair is _____ the number of hair scales pointing towards the hair follicle

• Greater than

• The same as

• Less than

A cast of a hair surface can be made using:

• An SEM

• Clear nail polish

• Softened Vinyl

• None of the above

Pigment granules that impart hair with color are found in the:

• Cortex

• Medulla

• Cuticle

• None of the above

The central canal running through many hairs is known as the:

• Medulla

• Cortex

• Shaft

• Cuticle

The medullary index of human hair is ______ the medullary index for most other animals

• Less than

• Greater than

• The same as

Medullae may be classified as being:

• Interrupted or absent

• Continuous

• Fragmented

• All of the above

If a hair does not have a follicular tag, an expert witness is on best scientific footing when stating that:

• The hair is useless as evidence in the case

• The hair in question comes form a 21 year old

• His examination reveals that the hair is that of a male

• A suspect hair comes from a particular animal species