electromyography
Meaning
A technique for recording and evaluating the electrical activity produced by skeletal muscles.
Structure
Usage
The neurologist ordered an electromyography to assess the patient's nerve and muscle function.
Needle electromyography involves inserting a fine electrode directly into the muscle tissue.
The results of the electromyography confirmed the diagnosis of carpal tunnel syndrome.
Etymology
The word 'electromyography' is a modern scientific compound built from three classical Greek roots. It literally translates to "the process of recording electricity from muscle." The first element, 'electro-', originates from 'ēlektron' (amber), the substance whose static electric properties were known to the ancients. The second, 'myo-', derives from 'mŷs' (mouse, muscle), likely due to the perceived resemblance of a flexing muscle to a mouse moving under the skin. The final suffix, '-graphy', comes from '-graphia', meaning the act or technique of writing or recording. Thus, the term's formation perfectly encapsulates its function: a diagnostic procedure that graphically records the electrical signals generated by muscle fibers during contraction and at rest.
Analysis
- electro: From Greek 'ēlektron' (amber, associated with electricity). In this word, it functions as a combining form meaning "electric" or "electrical." - myo: From Greek 'mŷs' (muscle, mouse). In this word, it functions as a combining form meaning "muscle." - graphy: From Greek '-graphia' (writing, recording). In this word, it functions as a suffix denoting a process or technique of recording.