microbiology
what is the definition of microbiology?
the study of small living organisms
____ is the fine, medium, or course textures or hair
density
a chemical reason that combines a substance with oxygen to produce an oxyde
oxidation
the _____ _____ is the portion of hair inside the follicle under skin's surface
hair root
what creates color?
visable
what are the 5 harmful organisms?
bacteria, viruses, external parasites, fungi, and biofilms
what are the 3 parts of the hairstrand?
cuticle, cortex, and medula
a chemical reaction where oxidation and reduction happen at the same time
redox
what do the sebaceous glands produce?
sebum
what 3 colors are considered primary and cannot be created by mixing other colors?
red, yellow, and blue
what type of bacteria can be benificial?
nonpathogenic
what are the 3 levels of hair texture?
basic, details, and structure
what is an oxidizing agent?
a substance that releases oxygen
the ___ is the innermost later of hair
medulla
what colors are combines to neutralize
opposites
what pathogenic bacteria doesn't move and can be single or in groups?
cocci
what location is considered normal projection?
90 degrees from where hair grows
true of false: a chemical reaction used with head
true
what causes cells to change their shape and dry out, form keritan, and are no longer alive
keratinization
the number in a color represents the ____ and the letter in a color represents a ____
level, tone
what are 2 stages of bacterial growth?
active and inactive
what does a raised cuticle indicate
unhealthy hair
COHNS
carbon, oxygen, hydrogen, nitrogen, and sulfur
what are the 3 stages of hair growth?
anagen, categen, and telogen
are toners considered permanent or demi permanent?
demi permanent