Properties of the Hair and Scalp Cosmetology

Which scale pattern is indicated?

• Coronal

• Spinous

• Imbricate

• None of these

Tags

NGSS.MS-LS4-2

Which scale pattern is indicated?

• Coronal

• Spinous

• Imbricate

• None of these

The following medulla pattern is called

• fragmented 

• continuous

• interrupted

Tags

NGSS.MS-LS3-1

cuticle

• the tough outer covering of a hair composed of overlapping scales

• material that connects an indivisual or thing to a certain group

• a type of fibrous protein that makes up the majority of the cortex of a hair

• the centrel core of a hair fiber

What is the primary function of the cuticle in hair structure?

• To protect the inner layers of the hair

• To provide color to the hair

• To supply nutrients to the hair

• To anchor the hair to the scalp

Which layer of the hair is responsible for its strength and elasticity?

• Cuticle

• Cortex

• Medulla

• Follicle

What is the main component of the hair cortex?

• Keratin

• Melanin

• Collagen

• Elastin

How does the pH level of a shampoo affect the hair cuticle?

• A high pH can cause the cuticle to swell and open

• A low pH can cause the cuticle to swell and open

• A neutral pH can cause the cuticle to swell and open

• pH level does not affect the cuticle

Tags

NGSS.MS-PS1-2

What is the role of melanin in the hair?

• To provide strength

• To give color

• To add moisture

• To protect from UV rays

Which part of the hair is most affected by chemical treatments?

• Cuticle

• Cortex

• Medulla

• Root