RB CH 07: Hair and Scalp Properties

Which is a primary reason cosmetologists need to understand the properties of the hair and scalp?

• Cosmetologists are responsible for protecting their clients’ hair and scalp.

• Many symptoms of diseases and skin conditions affect the hair and scalp.

• Knowing hair and scalp properties can ensure cosmetologists can protect their clients’ skin.

• Cosmetologists need this knowledge to provide proper skin care recommendations.

The study of hair is called (a)   .

• cosmetology

• trichology

• scalp and hair analysis

• hair growth cycle analysis

The part of the hair that is located above the epidermis is the (a)   .

• root

• arrector pili muscle

• shaft

• follicle

What does the dermal papilla do?

• It anchors the hair in the skin.

• It contains cells that form the hair strand.

• It causes goose bumps.

• It supplies the nutrients that hair needs to grow.

What is the function of the hair bulb?

• It contains cells that form the hair strand.

• It causes goose bumps.

• It anchors the hair in the skin.

• It lubricates the hair and skin.

Which of the following is true about the hair shaft?

• It is the only part that makes up human hair.

• It is the nonliving portion of hair.

• It is made up of the hair follicle, hair bulb, and dermal papilla.

• It is the living portion of the hair.

Which hair type is most likely to have a medulla?

• fine hair

• red hair

• coarse hair

• blonde hair

Which part of the hair shaft plays an important role during chemical services?

• hair bulb

• hair follicle

• medulla

• hair cuticle

Hair is approximately 90 percent (a)   .

• protein

• water

• lipids

• minerals

Which type of bond is an end bond?

• hydrogen

• salt

• disulfide

• peptide