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Electricity
Ch. 9 Electricity and Light Therapy
| Term | Definition |
|---|---|
| alternating current (AC) | rapid and interrupted current, flowing in one direction then the opposite direction |
| amp (ampere) | standard unit for measuring the strength of an electric current or the rate of flow of charge in a conductor |
| anaphoresis | process of forcing substances into tissues using galvanic current from the negative towards the positive pole |
| anode | positive electrode |
| cataphoresis | process of forcing acidic substances into tissues using galvanic current from the positive pole towards the negative pole |
| cathode | negative electrode |
| circuit breaker | switch that automatically interrupts or shuts off an electric circuit at the first sign of overload |
| complete circuit | the path of an electric current from the generating source through the conductor and back to its original source |
| conductor | any substance, medium, or material that conducts electricity |
| converter | an apparatus that changes direct current to alternating current |
| desincrustation | process used to soften and emulsify oil and blackheads in the hair follicles |
| direct current (DC) | constant current that travels in one direction only and produces a chemical reaction |
| electric current | the flow of electricity along a conductor |
| electrode | an applicator used to direct electric current from a machine to the skin |
| electrotherapy | electronic scalp and facial treatment |
| faradic current | alternating current that produces a mechanical reaction without chemical effect |
| fuse | device that prevents excessive current from passing through a curcuit |
| galvanic current | constant and direct current, having a positive and negative pole, that produces chemical changes in tissues and body fluids |
| ground fault circuit interrupter | a device that senses imbalances in an electric current |
| infrared rays | invisible rays with long wavelengths and deep penetration; produce the most heat of any therapeutic light |
| insulator | substance that does not easily transfer electricity |
| iontophoresis | process of introducing water-soluble products into skin through use of electric current |
| modalities | currents used in electric facial and scalp treatments |
| ohm (O) | the unit if electrical resistance in an electric current |
| polarity | negative or positive pole of an electric current |
| rectifier | apparatus that changes alternating current to direct current |
| rheostat | an adjustable resistor used for controlling current in a circuit |
| sinusodial current | alternating current used in scalp and facial manipulations that produces mechanical contractions |
| Tesla high-frequency current | thermal or heat producing current with a high oscillation rate; also known as the violet ray |
| ultraviolet light | invisible rays, with short wavelengths and minimal skin penetration, that produce chemical effects and kill germs; also called actinic or cold rays |
| visible light | electromagnetic radiation that can be seen by the human eye |
| volt (V) | a unit of electrical pressure that pushes the flow of electrons forward through a conductor |
| watt (W) | the unit of power (amperes multiplied by volts) indicating how much electric energy is being used in one second |
| wavelength | distance between rwo successive peaks of electromatic waves |
Created by:
BSPittsburgh
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