There are various conditions that can cause muscle twitching. Minor muscle twitching is usually the result of less serious, lifestyle-related causes. More severe muscle twitching, however, is often the result of a serious condition.
An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or air).
indicator electrode. an electrode used in potentiometry that responds to variations in the activity of an analyte ion or molecule. Briefly describe/define: reference electrode. electrode whose potential is known, constant, and independent of the type of solution in which it is immersed.