5.1 Hair Analysis

Reptiles and mammals are both potential sources of hair evidence.

• True

• False

What structure, located in the outside layer of the skin, grows and supports individual hairs and their growth?

• Follicle

• Cuticle

• Medulla

• Cortex

Individual hairs can be matched to a suspect by analyzing structure.

• True

• False

Hair is primarily made of a protein found in the hair shaft, called:

• elastin

• tubulin

• keratin

• fibrinogen

Tags

NGSS.HS-LS1-1

The pigment that gives hair its coloration is called:

• elastin

• tubulin

• keratin

• melanin

Tags

NGSS.HS-LS3-2

The main body of the hair is called the:

• cortex

• medulla

• cuticle

• fibrinogen

The central cell of a hair, which is not always found in every hair:

• cortex

• medulla

• cuticle

• fibrinogen

The outside layer of the hair, consisting of multiple scales:

• cortex

• medulla

• cuticle

• fibrinogen

Hair grows from the:

• proximal end

• distal end

• dorsal end

• ventral end

The ratio of the diameter of the medulla compared to the diameter of the hair, which varies from person to person:

• medullary index

• diameter index

• cuticular index

• cortical index