Hair and Fiber

True or False: A fiber is the largest unit of a textile material that has a length many times greater than its diameter.

• True

• False

________ fibers are man-made.

• Synthetic

• Natural

Tags

NGSS.MS-PS1-3

Number 2 is pointing to what structure of the hair?

• Cortex

• Medulla

• Cuticle

• None of These

What medulla pattern is shown?

• Absent

• Continuous

• Stacked

• Ladder

• Interrupted

The instrument used to analyze Hair & Fiber Evidence...

• Microscope

• Telescope

• Magnifying Lens

• Tape

Number 1 is pointing to what structure of the hair?

• Cortex

• Medulla

• Cuticle

• None of These

Number 3 is pointing to what structure of the hair?

• Cortex

• Medulla

• Cuticle

• None of These

What does a damaged hair root tell investigators?

• The hair was forcefully removed.

• The suspect was attacked.

• There was a struggle.

• The hair fell out of the person's head.

What are the three layers of hair?

• Medulla, keratin, cortex

• Cuticle, medulla, keratin

• Keratin, cuticle, cortex

• Medulla, Cortex, and Cuticle

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

• Cuticle

• Medulla

• Cortex