A physical side bond that is easily broken by water and heat is a:

• sulfur bond

• hydrogen bond

• nitrogen bond

• disulfide bond

The major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and sulfur, often referred to as the:

• keratins

• dermal foundation

• COHNS elements

• amino acids

The units of structure that build protein and are joined together end to end like pop beads are:

• lymph glands

• primary acids

• oxygenated cells

• amino acids

The five main structures of the hair root include all of the following except the:

• epidermis

• dermal papilla

• hair follicle

• arrector pili muscle

Which layer of the hair shaft creates the shine and the smooth, silky feel of healthy hair?

• medulla

• arrector pili

• cuticle

• cortex

The substance secreted by the sebaceous glands is called:

• lymph

• sulfure

• sebum

• sudoriferous

The melanin that provides brown or black color to hair is:

• telogen

• eumelanin

• ionic

• pheomelanin

The thickened, club-like structure that forms the lower part of the hair root is the:

• arrector pili

• hair bulb

• cuticle layer

• dermal papilla

Which of the following terms is used to describe hair’s wave pattern?

• curly

• straight

• extremely curly

• All answers are correct

The study of the hair and scalp including its disorders and diseases is?

• properties of hair and scalp

• trichology

• integumentary system

• myology