Hair

The cortex of hair derives its major forensic importance from the fact that it contains what?

• Scales

• Pigments

• Medullae

• DNA

If a hair were a pencil, which structure corresponds to the paint on the surface?

• Follicle

• Cortex

• Cuticle

• Medulla

If a hair were a pencil, which structure corresponds to the wood?

• Follicle

• Cortex

• Cuticle

• Medulla

If a hair were a pencil, which structure corresponds to the lead?

• Follicle

• Cortex

• Cuticle

• Medulla

Human or nonhuman hair?

• human 

• nonhuman

The hair shaft is composed of what important protein?

• Cellulose

• Chitin

• Peptidoglycan

• Keratin

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

• Medulla

• Cuticle

• Cortex

• Shaft

The main purpose of hair is to:

• Protect against sunlight

• Aid in sensory

• Regulate body temperature

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

• medulla

• cortex

• cuticle

• follicular tag

We know hair is from a human if the Medullary Index (MI) …

• The medullary index is 0.5 or greater

• The medullary index is 0.33 or less

• The cuticle is coronal

• The medulla is fragmented