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Which electrode can be used to pick up signals from individual fibers of muscle tissues?

Which electrode can be used to pick up signals from individual fibers of muscle tissues? Correct Answer multi-element needle electrode

Multi-element needle electrodes are used to pick up the signals from individual fibers of muscle tissue. Special needles are available using 25-micron diameter electrode surfaces. They have up to 14 pickup surfaces down the side of one needle.

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