Ch 7 Hair & Scalp Properties (Cosmetology)

Which of the following is a reason cosmetologists should understand hair and scalp properties?

• Identifying the shape of hair follicles can help when recommending methods to make a client’s hair grow faster.

• Identifying the cause of a dry or oily scalp helps to better recommend medication to the client to alleviate the condition.

• Identify hair growth cycles and the differences between common and uncommon hair loss will help when recommending treatments to the clients.

• Identifying the elasticity of hair helps to better determine treatments to soften coarse gray hairs to match the texture of the client’s pigmented hair.

All of the following are living portions of hair that are below the skin surface EXCEPT __________.

• The hair bulb

• The medulla

• The hair follicle

• The dermal papilla

What are the two parts of a strand of human hair?

• The root and the shaft

• The follicle and the bulb

• The dermal papilla and the arrector pili

• The cuticle and the cortex

Which part of the living portion of the hair is defined as the structure in the skin or scalp that surrounds the hair root and anchors the hair in the skin?

• The dermal papilla

• The hair bulb

• The arrector pili muscle

• The hair follicle

Which portion of the hair root structure supplies nutrients so that the hair can grow?

• The hair bulb

• The dermal papilla

• The arrector pili muscle

• The hair follicle

Each of the following is a layer of the hair shaft structure EXCEPT:

• The cortex

• The hair fiber

• The hair cuticle

• The medulla

Which sentence best describes the medulla?

• The medulla is the hair’s outermost layer

• The medulla is a cone-shaped elevation at the base of the hair bulb

• The medulla is the hair’s pith or inner core

• The medulla is the fibrous protein layer of the hair

Which layer of the hair shaft provides strength, elasticity, and color?

• The hair cuticle

• The hair fiber

• The medulla

• The cortex

What are the major chemical elements that make up human hair?

• Carbon, oxygen, hydrogen, nitrogen, and sulfur

• Proteins, water, lipids, and traces of minerals

• Amino acid and polypeptide chains

• Hydrogen bonds, side bonds, and salt bonds

How many wave patterns are there?

• 3

• 4

• 5

• 3 or 4 depending on who you talk to