First Aid
Following a burn, if the skin is not broken, what should you do?
Immerse in cool water
Any electrically charged appliance
Load
A pH of 7 indicates what?
A substance is neutral
Hair grows from a pocket called a root sheath or
Follicle
On average, how much does human hair grow in a month?
1/2”
If someone is having an allergic reaction where can you find information about the product?
SDS
An UL designation indicates what?
The appliance as been certified to operate safely under the conditions specified
A pH of 5 is how many times more acidic than a pH of 6?
10x
Gray hair is caused by
Reduced pigment in the cortex
What is at the base of the follicle and supplies nourishment to the germinal matrix?
Dermal papilla
A bleeding wound should be treated by
Applying pressure with gauze and a gloved hand
Cords should be kept straight and free of knots to prevent what?
Breaks
What is the pH range for hair, skin and nails?
4.5 - 5.5
A higher percentage of cortex vs cuticle would result in hair that is more
Elastic
What is the name of the active growing stage of hair and how long does it last?
Anagen, 2-6 years
If chemicals get into the eyes what should be done?
Flush the eyeball with lukewarm water for 15-30 minutes
What are some examples of insulating materials?
Glass, rubber and paper
What must be present for something to have a pH? Or it can be dissolved in this?
Water
What gives our hair its natural pigment? And what are the two types?
Melanin. Eumelanin and pheomelanin
The shape of the hair follicle that produces tightly curled hair is typically
Elliptical
Never use this unless bleeding cannot be controlled.
Tourniquet
What can result from an overloaded circuit?
Fire
This is a unit of measurement that indicates whether a substance is acidic, neutral or alkaline.
Potential hydrogen
What is the name of the resting stage of hair growth? And how long does it last?
Telogen. 3-4 months
The technical term for the study of hair
Trichology