Chapter 11 properties of hair and scalp

Where do humans NOT grow hair on the body..

• Ears

• Soles of the feet

• Palms of the hands

• Lips

The cuticle is the outer layer of the hair shaft, TRUE or FALSE?

• True

• False

When a substance undergoes a ____ change, a new substance with different properties is created.

• static

• chemical

• physical

• primary

A(n) ____ releases a significant amount of heat.

• exothermic reaction

• endothermic reaction

• physical change

• chemical change

The three different types of side bonds that link chains of amino acids together are .

• oxygen, hydrogen, and salt

• hydrogen, ionic, and carbon 

• ionic, helix, and disulfide 

• hydrogen, salt, and disulfide

Colors achieved by mixing equal parts of two primary colors are _____________

• tertiary

• secondary

• primary

• neutral

The study of hair is called?

• Dermatology

• Chiropody

• Trichology

Ingredients in shampoos are listed according to the percentages of each ingredient or in:

• ascending order

• descending order

• volume order

• alphabetical order

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

• the cortex 

• the hair fiber

• the hair cuticle

• the medulla

The muscle attached to the hair shaft is called what?

• Sebaceous muscle

• Arrector pilli

• Dermis muscle

• epidermis muscle