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Pivot Point Cosmetology
The study of hair
3 types of hair follicle
round, oval & elliptical
outer layer of the hair, hard resistant layer
middle layer of the hair, soft elastic quality
center layer of the hair
process where cells change their shape, dry out & form keratin protein
primarily made up of protein
"growing stage" hair bulb has an attached root sheath. hair is darker
"transitional stage" ALL cell division stops. only lasts a few weeks.
"resting stage" hair bulb has no attached root sheath. Hair falls out.
gives skin & hair their color
red in color, melanin that provides natural hair colors from red and ginger to yellow/blond tones
absence of pigmentation in the eyes and skin and hair
degree of coarseness or fineness in the hair fiber
judged by the # of active hair follicles per square inch
the ability of the hair to absorb moisture
the ability of the hair to stretch and return to its original length without braking
"pilica polonica"; hair tangled together
"trichorrhexis nodosa" presence of lumps or swelling along the hair shaft
technical term for gray hair
Alternating bands of gray and dark hair.
is an excessive growth of hair
technical term for beaded hair
a chronic skin disease characterized by dry red patches covered with scales
loose scales shed from the scalp
Scaly, Round, itchy patch on skin. (Contagious)
ringworm of the scalp
enlarged open hair follicles that are surrounded by clusters of red spots
dry, yellow, encrusted areas on the scalp
infestation of head lice on the scalp
baby fine, silky hair
short, fine, non-pigmented hair
excessive hair loss
heredity, hormones & age
hair loss due to pregnancy
round or irregular patches w/o an inflamed scalp
premature shedding of hair
traction or traumatic alopecia
repetitive traction on the hair by pulling and twisting