Ch 10: Properties of the Hair & Scalp (Barbering)

Trichology is the scientific study of ________, its disorders, and its care.

• the muscular system

• the skeleton

• hair

• skin

The chief component of hair is a __________ called keratin.

• pigment

• protein

• type of tissue

• liquid

The portion of the hair that extends above the skin surface is the?

• The hair shaft

• The root

• The dermal papilla

• The follicle

The portion of the hair that is enclosed within the follicle beneath the skin surface is the?

• The dermal papilla

• The hair bulb

• The hair shaft

• The hair root

The dermal papilla is surrounded by the?

• The hair bulb

• The dermal papilla

• The arrector pili muscle

• The hair follicle

The dermal papilla contains the blood and nerve supply that provides __________ needed for hair growth.

• Oxygen

• Lymph

• The nutrients

• Carbon

The arrector pili is a __________ in the skin attached to the base of the hair follicle.

• Involuntary muscle fiber

• Voluntary muscle fiber

• Tendon

• Ligament

The hair shaft consists of __________ main layers?

• Two

• Three

• Four

• Five

The __________ consists of a single overlapping layer of transparent, scale-like cells that look like shingles on a roof.

• Follicle

• Medulla

• Cortex

• Cuticle

The cortex is the __________ layer of the hair shaft?

• Outermost

• Middle

• Innermost

• Smallest