Hair Evidence Review

The protein that makes up hair is called _____

• ninhydrin
• pigments 
• medulla
• keratin

The deepest layer of hair (compared to the lead of a pencil) is the ___

• medulla
• cortex
• cuticle
• keratin 

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

• medulla
• cortex
• cuticle
• keratin

The outside layer of a hair (compared to the ink on a pencil) is the ___

• medulla
• cortex
• cuticle
• keratin

Which of the following is NOT one of the characteristics of the cuticle that varies and should be observed?

• scales
•  continuity 
• pigment
• thickness

In which phase of hair growth is hair actively growing?

• anagen
• catagen
• telogen
• melanen

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

• anagen
• catagen
• telogen
• melanen

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

Where is Nuclear DNA found in the hair?

• root
•  hair shaft
• tip
• medulla

Is this hair animal or Human?

• Animal

• Human