Answer :
Surface electrodes detect voltage differences induced by many fibers because a single fiber generated and conducts a voltage that is too weak to be detected by surface electrodes on the skin.
Pay attention to the pronunciation. SER-fus ee-LEK-trode (SER-fus ee-LEK-trode) A small device attached to the skin that measures or induces electrical activity in the tissue beneath it. Surface electrodes can be used to detect muscle and nerve problems.
Suction electrode (A). (B) Electrode in a metal cup. Carbon-filled silicone electrode (C). Microfabricated wearable electrodes are a new type of surface electrode.
Surface electrodes operate on the chemical equilibrium principle, detecting changes in the muscle surface and body skin via electrolytic conduction. Surface electrodes are classified into two types: Dry EMG electrodes and gelled EMG electrodes.
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