surface electrode
(SER-fus ee-LEK-trode)
A small device that is attached to the skin to measure or cause electrical activity in the tissue under it. Surface electrodes may be used to look for problems with muscles and nerves.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at opm.gov.