Name the 3 parts of the inside of the hair shaft
cuticle, cortex, medulla
What approximate percentage of hair is protein?
90%
There are two types of hair found on the body. This type is pigmented and almost never has a medulla.
Vellus
The technical term for gray hair is:
Canities
What is a more severe case of dandruff accompanied by redness and inflammation where it is highly advised not to perform services?
Seborrheic Dermatitis
Name the 4 terms used that describe the hair’s wave pattern?
Straight, wavy, curly and extra curly
Name the 3 parts of the outside of the hair shaft
base, midshaft, ends
True or false a peptide cannot be reformed?
True
The three stages of the growth cycles for human hair are:
Anagen, catagen, and telogen
The condition of abnormal hair growth of terminal hair is referred to as:
Hypertrichosis
The medical term used to describe dandruff is:
Pityriasis
The thickness or diameter of the individual hair strand is referred to as hair:
Texture
Name the 3 side bonds
hydrogen, salt, disulfide
This hair pigment provides natural colors ranging from red and ginger to yellow and blond tones.
Pheomelanin
The resting phase or final phase of the hair cycle that lasts until the fully grown hair is shed is the:
Telogen
Trichoptilosis is the technical term for:
Split ends
Current research confirms that dandruff is the result of a fungus called:
Malassezia
Hair that has the largest diameter and usually requires more processing is:
Coarse hair
Name the 3 types of hair texture
coarse, medium, fine
The hair, skin, nails, and glands are known collectively as the:
Integument
What is the Greek word that means "hair"?
Trichos
A condition that is characterized by brittleness and the formation of nodular swellings along the hair shaft is:
Trichorrhexis Nodosa
A severe type of dandruff characterized by an accumulation of greasy or waxy scalp scales mixed with sebum is:
Pityriasis Steatoides
The ability of the hair to absor
b moisture is:
Porosity
Name the 3 areas of the pH scale
acid, neutral, alkaline (base)
Name the five main parts of the hair root.
Follicle, bulb, dermal papilla, arector pili muscle and sebaceous glands
What two things does dermal papilla contain that provide nutrients needed for hair growth?
Blood and nerve supply
Tinea is characterized by itching scales and sometimes painful circular lesions and is caused by:
Fungal organisms
Chemical services performed on hair with low porosity require a solution that is:
More alkaline