pH scale
On the pH scale, numbers less than 7 indicate a(n):
A) acidic solution
B) neutral solution
C) chemical solution
D) alkaline solution
A) acidic solution
Bacteria that are harmless and can even be beneficial are called:
nonpathogenic
The central core of the hair shaft sometimes missing in fine or very fine hair is the:
A) cortex
B) cuticle
C) papilla
D) medulla
D) medulla
Shampoo-containing additives to improve the tensile strength, elasticity and porosity of the hair is:
conditioning shampoo
Eumelanin is the type of melanin that produces:
What is the pH range of hair, skin and nails?
A) 4.5 to 5.5
B) 6.5 to 7.0
C) 7.5 to 10.5
D) 11.5 to 12.0
A) 4.5 to 5.5
Corkscrew-shaped bacterial cells are called:
spirilla
The hair growth stage when all cell division stops is the:
A) active stage
B) telogen stage
C) anagen stage
D) catagen stage
D) catagen stage
A conditioner ingredient that gives dry hair a smooth feel and makes their hair easier to comb is:
fatty acids
Gray hair is sometimes referred to as as:
mottled hair
On the pH scale, numbers greater than 7 indicate a(n):
A) acidic solution
B) neutral solution
C) chemical solution
D) alkaline solution
D) alkaline solution
Infection control is divided into the following categories:
The layer of hair consisting of unique protein structures that give the hair most of its pigment and strength (elasticity) is called the:
A) cortex
B) cuticle
C) follicule
D) medulla
A) cortex
A shampoo type generally recommended for clients who are bedridden and cannot wet their hair is known as:
non-aerosol powder dry shampoo
Bundles called melanosomes are formed by:
melanocytes
The acid mantle maintains the natural pH of hair and skin and protects the:
A) cortex
B) cuticle
C) medulla
D) follicle
B) cuticle
disinfection
The hair follicle that produces tightly curled hair is typically:
A) wavy
B) round
C) square
D) elliptical
D) elliptical
An ingredient found in conditioners making hair easier to comb and control static is:
amines/quats
Humectants are what type of ingredients?
The active growing stage of hair lasts from:
A) 6 months to 1 year
B) 2 to 6 years
C) 12 to 16 years
D) 24 to 50 years
B) 2 to 6 years
When disinfecting, tools must be precleaned before:
immersion
The diameter of a hair fiber will be the same as:
A) the length of the root sheath
B) one-half the size of the root sheath
C) the size of the arrector pili muscle
D) the inside diameter of the hair follicle
D) the inside of the diameter of the hair follicle
The primary ingredient of most shampoo is:
deionized water
Mitosis takes place in the area of the hair bulb called the:
germinal matrix