Properties of the Hair and Scalp

What is the oily substance secreted by the skin’s oil glands that lubricates the hair and skin?

• Helix

• Keratin

• Sebum

• Mucous

What is a highly contagious skin disease caused by a parasite called a mite?

• Scabies

• Dandruff

• Pediculosis

• Tinea

What is the technical term for gray hair?

• Alopecia

• Canities

• Albino

• Ringed Hair

What severe form of dandruff is accompanied by redness and inflammation?

• Seborrheic dermatitis

• Folliculitis

• Pityriasis capitis simplex

• Pityriasis steatoides

A weak, physical, cross-link side bond between adjacent polypeptide chains that is broken by changes in pH is a _____ bond.

• Salt

• Carbon

• Hydrogen

• Sulfur

What is the outermost layer of hair?

• Hair Medulla

• Hair Cuticle

• Hair Cortex

• Hair Follicle

What is the technical term for brittle hair?

• Fragilitas crinium

• Pruritis

• Hypertrichosis

• Pityriasis capitis simplex

Hydroxide chemical relaxers break disulfide bonds and convert them to _____ bonds.

• sulfur

• lanthionine

• carbon

• hydrogen

What substances are comprised of long, coiled, complex polypeptides made of amino acids?

• Proteins

• Carbohydrates

• Keratins

• Melanins

The thickness or diameter of the individual hair strand is referred to as hair _____.

• porosity

• dryness

• texture

• elasticity