Hair Bulb Formation
Determines the shape of the hair shaft as it grows
What is shape of follicle?
Three major layers of the hair shaft
What is cuticle, cortex and medulla?
Hair is primarily made of
What is protein?
Purpose of shampooing
What is to cleanse the hair and scalp?
Number of active hair follicles per square inch
What is density?
Tube-like pocket that encases the hair root
Transitional stage of hair growth
What is catagen?
Average hair growth monthly
What is 1/2"?
Treatment for any scalp disease or disorder
What is refer to a physician?
Hair's ability to stretch and return to its original shape without breaking
What is elasticity?
The portion of hair inside the follicle under the skin
What is hair root?
Cell division takes place
What is the germinal matrix?
When sebum mixes with the body's perspiration
What is the acid mantle?
Technical term for head lice
What is pediculosis capitis?
Coarseness or fineness of the hair
What is texture?
Portion of hair that extends above the skin's surface
What is hair strand/fiber or shaft?
Causes hair to stand on end when scared or cold, involuntary muscle and aids in the secretion of sebum
What is the arrector pili muscle?
Length of the anagen stage
What is 2-6 years?
Red, circular patch of small blisters cause by a vegetable parasite
What is tinea (ringworm)?
Absorbs the least amount of moisture
What is resistant or poor porosity?
Has flat/elliptical follicle shape
What is tightly curled hair?
Produces sebum that helps prevent the hair and skin from drying out
What is sebaceous (oil) glands?
3 main factors affecting hair growth
What is illness, lack of vitamins and minerals, and or disease and medication?
Technical term for dry dandruff
What is pityriasis capitis?
Wet and dry hair can stretch
What is 40-50% its length when wet and 20% when dry?