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EMG/bio-feedback MCQs
EMG/bio-feedback MCQs
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- EMG reveals action potential of
π . Muscle
π . Motor unit
π . Nerve fiber
π . None of the above - Which electrodes are used for more accurate EMG?
π . Surface electrodes
π . Needle electrode
π . Both
π . None - The physiological changes that occur during bio-feedback is due to
π . Unknown pathway
π . known pathway
π . Both
π . None of the above - In EMG activities studied are
π . Insertional , spontaneous
π . Insertional & exertional
π . Spontaneous & exertional
π . Insertional, spontaneous & exertional - Which is a normal spontaneous activity?
π . Fibrillation
π . Positive sharp wave
π . End phase spike
π . None of the above - Which is not true for positive sharp wave?
π . Diphasic potential
π . Abrupt positive initial deflection
π . Abrupt negative delay
π . All of the above - What is not false about denervation potential?
π . They appear 2-5 weeks after nerve injury
π . They are present in primary muscle disease
π . Includes fibrillation , fasciculation
π . All of the above - Which is true for fasciculation?
π . Spontaneous firing of the action potential of single muscle fiber
π . None volitional random contraction of group of muscle fiber
π . Duration 1-5 msec
π . Frequency 1-50 Hz - The medium frequency current create a numbness, for which patient perceives a reduction in the intensity of current, is known as
π . Amplitude inhibition
π . Current modulation
π . Widensky inhibition
π . None of the above - The chemical burn expected to occur due to passage of DC current into the body is likely to occur at
π . Cathode
π . Anode
π . Both the electrodes
π . Where acids are formed
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