Hair
How many hairs are there per sq in?
2,200
A slightly pink nail is a sign of a/an:
healthy nail
The skin is the largest and one of the most important ____________ of the body.
organs
The Science that deals with the composition, structures and properties of matter.
chemistry
A measurement of how much electricity is being used in 1 second is a(n):
watts
On average would someone with blonde hair, red hair, brown hair or black hair have the most overall hair?
Blondes with an average of 140,000 hairs
The nail is technically referred to as:
Onyx
What are the appendages of the skin?
hair, nails, sweat glands, oil glands
Any substance that occupies space and has mass is:
mass
The special device that prevents excessive current from passing through a circuit is a(n):
fuse
How layers does a hair strand have?
3 cuticle, cortex, medulla
The nail is composed of keratin, which is:
Keratin
Where are nerve endings most abundant?
fingertips
What does pH stand for?
Potential hydrogen
A rapid and interrupted current that flows in one direction and then in the opposite
alternating current
What is the hair composed of?
A protein call keratin
A normal cuticle is:
Tight to help prevent pathogens from entering the nail matrix.
Normally, how much sweat is excreted daily?
1-2 pints
Mixture of two or more immiscible (incapable of being mixed)substances united with a binder.
emulsion
What is the movement of electrons from one atom to another along a conductor?
electricity
There are two types of melanin that give hair its natural color, name one of them?
eumelanin- produces brown and black
pheomelanin- produces yellow and red
A rate of nail growth of 1/8 inch per month is average for:
adults
Kid's nails grow faster than adults.
Water composes what percent of the body's weight?
50-70%
Hair, skin, and nails have a pH of __________
4.5-5.5
Normal electric wall sockets that power a hairdryer or curling iron are _____ volts.
120 volts