Hair Functions and Types

What is the primary function of hair according to the text?

• To protect the head from injury and physical trauma

• To insulate the body from heat and cold

• To symbolize a source of pride, self-care, and esteem

• To provide a source of natural styling

What is the secondary purpose of hair as mentioned in the text?

• To protect the head from injury and physical trauma

• To insulate the body from heat and cold

• To symbolize a source of pride, self-care, and esteem

• To provide a source of natural styling

Where does hair growth actually occur?

• From the hair shaft

• From the hair follicle

• From the outer structure of the hair

• From the hair root

What type of hair is described as short, fine, and "baby" hair?

• Terminal hair

• Vellus hair

• Medulla hair

• Cortex hair

Which type of hair is pigmented and found on the scalp, arms, legs, nose, and ears?

• Vellus hair

• Terminal hair

• Medulla hair

• Cortex hair

How many hair follicles are people typically born with on their head?

• About 50,000 to 100,000 follicles

• About 100,000 to 150,000 follicles

• About 200,000 to 250,000 follicles

• About 300,000 to 350,000 follicles

Which hair type is generally associated with a round follicle?

• Asian hair

• European hair

• African hair

• No specific type

What is the hair bulb?

• The outermost layer of the hair shaft

• An enlarged, thick, round structure at the very bottom of the hair root

• A small, involuntary muscle attached to the underside of a hair follicle

• A sac-like structure that provides the follicle with natural oils

What is the function of the dermal papilla?

• To contract and make hair stand up straight

• To supply the hair with oxygen-rich blood, nerves, and keratin protein cells

• To secrete a substance called sebum, which adds luster to the hair

• To protect the hair root in the dermis of the skin

Which of the following is NOT a function of the sebaceous glands?

• To provide the follicle with natural oils

• To serve as the hair's natural conditioners

• To supply the hair with oxygen-rich blood

• To secrete a substance called sebum