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what is the time from the beginning of the first phase to the end of the last phase of the pulse
what is a waveform produced by the interference of two medium frequency sinusoidal AC's
what is it called when matter has a positive charge, a negative charge, or is electrically neutral
what frees electrons flow from an area of excess electrons to an area deficient in electrons
what is the flow or movement of charged particles through a conductor following an applied electrical field
what is electrical force moving charged particles through a conductor between two regions or points
what is a more accurate descriptor of the relationship between voltage and current than resistance
what has waves that interfere in the machine and are then delivered through 2 electrodes, 1 channel
what is the time it takes current to go from maximum to zero amplitude for any one on time
Symmetrical biphasic pulsed
what type of estim is used for muscle strengthening or muscle reeducation or muscle spasm or chronic edema
what is the difference inelectrical potential across the cell membrane when information is not being transmitted
opening of Na channels pulls Na in to the cell by the negative charge inside and because of the larger concentration of Na outside the cell
what happens during the Depolarization of an action potential
Channels close and K channels open; K is pushed out of the cell because of the large concentration of K inside of the cell and the positive charge inside the cell
what happens during the Repolarization of an action potential
Absolute refractory period
what is it when the membrane is depolarized, and it is not possible to create another AP
Relative refractory period
what is it when after depolarization occurs, a short hyperpolarization period occurs
Relative refractory period
what is a stronger than normal AP that would be required to produce another AP
what is the minimum amount of electrical current required to depolarize the nerve and produce and AP in a specific type of nerve
what type of nerves carry lower current amplitude and shorter pulse duration depolarize
what type of nerves carry higher amplitude and longer pulses are required to depolarize
Pain-transmitting C fibers
what type of nerves carry high amplitude and longer pulses are required to depolarize
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