Structure of Hair
Chemical Composition
Hair Growth
Hair Analysis
Disorders of the Scalp
100
Hair is composed chiefly of this protein.
Keratin
100
What type of bond is a physical side bond that reacts to changes in pH?
Salt Bond
100
Hair is present all over the body except where? (4 Answers)
Palms, Soles, Lips, and Eyelids.
100
This refers to the degree of coarseness/fineness of individual hair strands.
Hair Texture
100
What is pityriasis?
Dandruff
200
This is the middle layer of the hair shaft.
Cortex.
200
What type of hair has less carbon and hydrogen and more oxygen and sulfur?
Light Colored Hair
200
What are the three main types of hair?
1. Vellus/Lanugo 2. Primary Terminal 3. Secondary Terminal
200
*DOUBLE POINTS* What 4 senses are used when performing hair analysis?
1. Sight 2. Touch 3. Hearing 4. Smell
200
What is tinea capitis?
Ringworm of the scalp
300
What are the three layers of the hair shaft?
1. Cuticle 2. Cortex 3. Medulla
300
*DOUBLE POINTS* What are the 5 elements are made to form amino acids?
1. Carbon 2. Oxygen 3. Hydrogen 4. Nitrogen 5. Sulfur
300
What is the average growth of scalp hair?
1/2'' per month.
300
What measure the amount of hair per square inch of scalp area?
Hair Density
300
What is the infestation of the hair and scalp with head lice?
Pediculosis capitis
400
The hair root is the portion of hair beneath the skin surface, enclosed in what?
The Follicle.
400
What are chemical bonds what join amino acids end to end in a definite order?
Peptide/End-Bonds
400
How many hairs per day on average to people lose?
75-100
400
What is the ability of the hair to absorb moisture?
Hair Porosity
400
Tinea sycosis is also known as what?
barber's itch
500
What are the 5 main structors of the hair root?
1. Follicle 2. Bulb 3. Dermal Papilla 4. Arrector Pili Muscles 5. Sebaceous Glands
500
Human hair consists of what percent of Carbon, Oxygen, and Hydrogen?
Carbon--51% Oxygen--21% Hydrogen--6%
500
What are the 3 growth cycles of hair?
1. Anagen 2. Catagen 3. Telogen
500
What are the three types of hair texture?
1. Coarse 2. Medium 3. Fine
500
What is the technical term for razor bumps?
Pseudofolliculitis barbae
M
e
n
u