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