Forensics - Hair, Fiber, Paint - Test Review

Which hair cuticle pattern is shown?

• Spinous

• Imbricate

• Coronal

Which hair cuticle pattern is shown?

• Spinous

• Imbricate

• Coronal

Which hair cuticle pattern is shown?

• Spinous

• Imbricate

• Coronal

What happened to this hair?

• burned

• cut

• torn

• forcibly removed

Why do manufactured fibers have uniquely shaped cross sections?

• The monomers that make them up also have unique cross sections

• They wrap around each other to form intricate patterns

• The polymers that make them up take the shape of the element they are composed of

• They take the shape of the nozzle they are forced out of

Which statement is correct?

• both are human

• right: human hair, left: animal hair

• right: animal hair, left: human hair

• both are animal

Which statement is true?

• animal hair has a continuous and patterned medulla

• human hair has a continuous and patterned medulla

• human hair has a medullary index of more than 1/3

• animal hair has a medullary index of less than 1/3

Which statement is true?

• animal hair usually has a cuticle that is more than 1/3 the diameter of the hair shaft

• human hair typically has either an absent or fragmented medulla

• animal hair typically only shows imbricate cuticle patterns

• human hair has a cortex that is less than 1/3 the diameter of the hair shaft

Are these fibers or hairs? Choose the best answer:

• hairs...there are medulla

• fibers...they have a cortex pattern

• fibers...they have a continuous and patterned cuticle

• hairs...they have a lightly colored cortex

Which growth phase was this hair in?

• anagen

• catagen

• telogen