Forensics-Hair

The central core of a hair is the

• cortex

• medulla

• cuticle

• follicle

The ____________ of an animal hair is much wider than that of a human hair.

• cortex

• medulla

• cuticle

• follicle

The fibrous protein found in hair is

• cuticle

• keratin

• DNA

• melanin

The tough outer covering of a hair is the

• medulla

• cortex

• follicle

• cuticle

Human hair has scales that are

• imbricate

• coronal

• spinous

• none of these

The first stage of a hair's life cycle is called the

• infant stage

• catagen stage

• telogen stage

• anagen stage

Hair grows at an average of ____ cm/month.

• 2.5

• 1.5

• 1.9

• 1.3

Tags

NGSS.MS-LS1-5

During the ____ stage, hair is easily lost.

• anagen

• telogen

• catagen

• could happen at any stage

The ratio of the diameter of the medulla to the diameter of the entire hair is known as the

• medullary index

• cortex ratio

• ovoid index

• anagen number

Cat hair cuticles are made of _______scales.

• coronal

• spinous

• imbricate

• none of these