Hair and Fiber

What scale type do we call number 2?

• Imbricate

• Spinous

• Coronal

• Crescent

Tags

NGSS.MS-LS4-2

Refers to small evidence like hairs of fibers

• physical evidence

• trace evidence

• suspect

• witness

The middle layer of a hair (compared to the wood of a pencil) is the __

• medulla

• cortex

• cuticle

• keratin

Which phase of hair growth usually lasts three to five years?

• anagen

• catagen

• telogen

• melanen

hair follicle

• the actively growing root or base of hair containing DNA and living cells

• material that connects an indivisual or thing to a certain group

• a type of fibrous protein that makes up the majority of the cortex of a hair

• the tough outer covering of a hair composed of overlapping scales

Tags

NGSS.HS-LS1-4

Can we tell if a hair was forcibly removed?

• Yes

• no

Fibers are considered what kind of evidence? 

• Individual

• Class

• Direct

• Indirect

Which phase of hair growth is the final phase of hair growth that results in hair loss and lasts about three months?

• anagen

• catagen

• telogen

• melanen

What medulla pattern is shown?

• Absent

• Continuous

• Stacked

• Ladder

• Interrupted

The bottom portion of hair in which nuclear DNA can be found.

• Medulla

• Root

• Cuticle

• Cortex