Milady Chapter 11 Properties of the Hair and Scalp

Name the two parts of the hair shaft.

• Hair root

• Papilla

• Cuticle

• Hair shaft

Choose the correct labeling.

• A. Cortex

  B. Cuticle

  C. Hair Root

• A. Cuticle

  B. Cortex

  C. Medulla

• A. Cuticle

  B. Medulla

  C. Cortex

• A. Cortex

  B. Hair Shaft

  C. Cortex

Hydrogen, Salt, and Disulfide play what role in the hair?

• They are side bonds that connect protein chains.

• They are end bonds that hold amino acids together.

• They play no role at all.

• They cause the hair to harden down during keratinzation.

The hydrogen bond is 1/3 the strength of the hair. What breaks this bond?

• Water or heat.

• Chemicals

• Change in pH

• Nothing breaks it.

Tags

NGSS.HS-PS1-3

NGSS.HS-PS3-4

This bond is a physical bond and is broken by a change in pH.

• Disulfide bond

• No such bond.

• Hydrogen bond

• Salt bond

The disulfide bond is a strong covalent bond. What breaks this bond?

• Heat or water

• Nothing will break this bond.

• Chemicals only

• Change in pH

There are two types of hair found on the body. What are they?

• Vellus and lanugo

• Terminal and anagen

• Vellus and terminal

• Telogen and anagen

The growth cycle of hair has three phases. Find the correct order of the growth cycle.

• Anagen, catagen, and telogen.

• Catagen, anagen, and telogen.

• Telogen, anagen, and Catagen.

• Terminal, catagen, and anagen.

During the anagen phase what is happening ti the hair?

• It is being shed.

• Its growing.

• It is in the resting phase.

• It is ready to be pulled out.

This is pityriasis. It is caused by a fungus called malassezia. We call it by another name, what is it?

• Tinea

• Pediculosis capitis

• Dandruff

• Canities