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40 terms

Chapter 11: Basics of Electricity

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active electrode
electrode used on the area to be treated
alternating current
rapid and interrupted current, flowing first in one direction and then in the opposite direction
amp
unit that measures the amount of an electric current (quantity of electrons flowing through a conductor)
anaphoresis
process of forcing liquids into the tissues from the negative toward the positive pole
anode
positive electrode
blue light
theraputic light that should only be used on bare oily skin; contains few heat rays, is the least penetrating and has some germicidal and chemical benefits
catalysts
any substances having the power to increace the velocity (speed) of a chemical reaction
cataphoresis
process of forcing acidic substances into deeper tissues using galvanic current from the positive toward the negative pole
cathode
negative electrode
circuit breaker
switch that automatically interrupts or shuts off an electric circuit at the first indication of overload
complete circuit
the path of an electric current from the generating source through conductors and back to its original source
conductor
any substance, material, or medium that easily transmits electricity
converter
apparatus that changes direct current to alternating current
direct current (DC)
constant, even-flowing, current that travels in one direction only
desincrustation
process used to soften and emulsify grease deposits and backheads in the hair follicles
electric current
flow of electricity along a conductor
electricity
form of energy that, when in motion, exhibits magnetic, chemical or thermal effects; a flow of electrons
electrode
applicator for directing the electric current from machine to client's skin
electromagnetic radiation
also called radiant energy because it carries, or radiates, energy through space on waves
fuse
special device that prevents excessive current from passing through a circuit
galvanic current
constant and direct current (DC), having a positive and negative pole and producing chemical changes when it passes through the tissues and fluids of the body
inactive electrode
opposite pole from the active electrode
infrared rays
invisible rays that have longer wavelengths, penetrate deeper, and produce more heat than visible light
insulator (noncondutor)
substance that does not easily transmit electricity
iontophoresis
process of introducing water soluble products into the skin with the use of electric current, such as the use of the positive and negative poles of a galvanic machine
kilowatt
1,000 watts
milliampere
one-thousandth of an ampere
modalities
currents used in electrical facial and scalp treatments
ohm
unit that measures the resistance of an electric current
polarity
negative or positive pole of an electric current
rectifier
apparatus that converts alternating current to direct current
red light
theraputic light used on dry skin in combination with oils and creams; penetrates the deepest and produces the most heat
Tesla high-frequency current
thermal or heat-producing current with a high rate of oscillation or vibration; also called violet ray
ultraviolet (UV) rays
invisible rays that have short wavelengths, are the least penetrating rays, produce chemical effects, and kill germs; also called cold rays or actinic rays
visible light
the primary source of light used in facial and scalp treatments
volt
unit that measures the pressure or force that pushes the flow of electrons forward through a conductor
wall plate
instrument that plugs into an ordinary wall outlet and produces various types of electric currents that are used for facial and scalp treatments
watt
measurement of how much electric energy is being used in one second
wavelength
distance between successive peaks of electromagnetic waves
white light
referred to as combination light because it is a combination of all visible rays of the spectrum