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Needle electrode is used to measure ____________

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Needle electrode is used to measure ____________

(a) EKG

(b) EEG

(c) EOG

(d) EMG

I had been asked this question in homework.

My question is from Recording Electrodes topic in division Bioelectric Signal and Electrodes of Biomedical Instrumentation

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Best answer
The correct choice is (d) EMG

Easiest explanation: EMG stands of Electromyogram. For recording action potential for individual motor units of muscle fiber, needle electrodes are used for better diagnostic information. These electrodes fall in the category of deep seated electrodes.

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