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25 Cards in this Set
- Front
- Back
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The flow of electricity along a conductor is called a(n):
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electric current
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Electric wire are usually covered with a rubber substance that is used as a(n):
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insulator
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A ______ is a device that changes direct current to alternating current.
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converter
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The term _____ refers to a rapid and interrupted current that flows in one direction then in the opposite direction.
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alternating current
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The unit that measures the pressure or force that pushes the flow of electrons through a conductor is a(n):
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volt
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Which unit measures the resistance of an electric current?
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ohm
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The device that prevents excessive current from passig through a circuit is called a(n):
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fuse
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A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a(n):
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circuit breaker
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The negative electrode of an electrotherapy device is called a(n):
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cathode
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A process that forces an alkaline product into the tissues from the negative toward the positive pole is called:
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anaphoresis
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Grounding completes a(n) _______ and carries the current safely away.
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electric circuit
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All the electrical appliances you use should:
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be UL certified
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When using _____, the active electrode is the electrode used on the area to be treated.
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galvanic current
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Mirocurrent can be used to _____ and restore elasticity.
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increase muscle tone
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Only licensed professionals can use:
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light therapy equipment
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A wavelength is the distance between successive peaks of ______ waves.
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electromagnetic
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Invisible light is the light at either end of the _____ that is invisible to the naked eye.
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visible spectrum of light
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UVC light is:
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is blocked by the ozone layer
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Catalysts are substances that speed up:
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chemical reactions
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All lasers work by a process known as selective:
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photothermolysis
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Constant and direct current, having a positive and negative pole, that produces chemical changes when it passes through the tissues and fluids of the body is known as ____ current.
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galvanic
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An extremely low level of electricity that mirrors the body's natural electrical impulses is:
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microcurrent
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A medical device that uses multiple colors and wavelengths of focused light to treat such conditions as excessive hair and spider veins in a(n):
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intense pulse light
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The thermal or heat-producing current with a high rate of oscillation or vibration commonly used for scalp and facial treatments is called:
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tesla high-frequency current
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A device that works by releasing light onto the skin to stimulate specific responses at precise depths of the skin tissue is a(n):
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light-emitting diode
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