anatomy
what muscle closes the mouth and puckers the lips?
Orbicularis Oris
what are three factors that affect hair growth?
genetics, horomores, and diet
what is the pH range of hair?
4.5-5.5
what do you use to clean a non-porous surface?
an EPA-Registered disinfectant
what tool is used to apply thinner color products?
A color brush
what system includes the brain and spinal cord?
Central nervous system
what is the fine, unpigmented hair called?
Vellus
A pH of 8 is how many more times more Alkaline than a pH of 6?
100 times
what is the purpose of a Safety Data Sheet?
to provide safety information about the product
what tool has a moveable and stationary blade?
Scissors
what body part is used to push the fingers together?
Adductors
what is the term for hair loss caused by stress?
Telogen Effluvium
what term describes a substance with a pH below 7?
an Acidic Solution
how often should the solution in disinfectant containers be changed?
Daily, or as directed by the manufacturer
What tool is used to lightly shape nails?
an emery board (Nail File)
what is the colorless fluid inside tissue called?
Lymph
What layer of the hair provides strength and elasticity?
The cortex
what is the most accurate method to measure pH?
Electrochemical (digital pH meter)
what is the term for a disease-causing microorganism?
Pathogenic
What type of cut is mostly used for a solid form?
Beveled cut
what body movements push back the cuticles?
Using light, quick, circular motions
Under what condition can hair pulled from the root grow back?
When the papilla is not destroyed.
what is the branch of science studying substances without carbon?
Inorganic chemistry
What must you do before immersing tools?
clean them of debris and dirt.
used as a length guide for cutting graduated, layered and square combinations/
design line