Question

When intramuscular EMG is required to look into the electrical activities of deeper or overlaid muscles, ________ electrodes are used.

(a) plate shape electrodes

(b) surface electrodes

(c) thin thread electrodes

(d) fine wire electrodes

This question was posed to me in an online quiz.

My question is based upon Electrodes for EMG topic in portion Bioelectric Signal and Electrodes of Biomedical Instrumentation

Answer 1

Right answer is (d) fine wire electrodes

Best explanation: When intramuscular EMG is required to look into the electrical activities of deeper or overlaid muscles, thin and flexible fine wire electrodes are used. These electrodes are inserted into the muscle site of interest. The needle or steel cannula is removed, and the electrode wires are connected to the steel spring adapters to minimize movement artefacts.