Hair Unit Day 1

What is the average number of hairs a person loses per day?

• 10-20

• 20-40

• 40-125

• 125-150

What are the two main functions of hair?

• To regulate temperature and protect skin

• To act as a sensory organ and provide camouflage

• To provide insulation and act as a sensory organ

• To regulate temperature and provide camouflage

When can hair be considered individual evidence?

• When found on clothing

• When the hair follicle is attached

• When the hair is a certain color

• When the hair is collected from a crime scene

What are the two ways hair can be observed?

• Chemically and visually

• Macroscopically and microscopically

• Colorfully and structurally

• Lightly and heavily

Which layer of the hair is the outermost?

• Medulla

• Cortex

• Cuticle

• Follicle

What part of the hair contains the pigment that gives hair its color?

• Medulla

• Cortex

• Cuticle

• Follicle

Which of the following is NOT a method used to analyze hair in forensics?

• DNA analysis

• Microscopic analysis

• Chemical analysis

• X-ray diffraction

What is the primary protein found in hair?

• Collagen

• Elastin

• Keratin

• Myosin

Which phase of hair growth is the longest?

• Anagen

• Catagen

• Telogen

• Exogen

What is the significance of the medulla in hair analysis?

• It determines the hair's color

• It helps identify the species of origin

• It indicates the age of the individual

• It shows the hair's growth rate