Q.

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

A. biopolar needle electrode
B. concentric core needle electrode
C. multi-element needle electrode
D. monopolar needle electrode
Answer» C. multi-element needle electrode
Explanation: 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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