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The ground electrode is usually positioned over which body structures?

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The ground electrode is usually positioned over which body structures?

(a) bony

(b) hairy

(c) fleshy

(d) sweaty

The question was posed to me by my school teacher while I was bunking the class.

This key question is from Electrodes for EMG in section Bioelectric Signal and Electrodes of Biomedical Instrumentation

1 Answer

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Best answer
Correct choice is (a) bony

The best explanation: The ground electrode is usually positioned over bony structures rather than over large muscle masses, in the vicinity of the recording and stimulating electrodes, and where possible, equidistant from them. Hairy areas don’t transmit proper signals. It increases impedance of the skin.

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