An electromyogram (EMG) is a test that is used to record the electrical activity of muscles. When muscles are active, they produce an electrical current. This current is usually proportional to the level of the muscle activity. An EMG is also referred to as a myogram. The procedure is quite painful as the technician has to stick a needle connected to a meter that reads and conducts electrical current. You have to flex at some points while the needle in in the muscle. It requires at least 20 or so insertions of the needle following the nerve branch. It feels like torture but cannot be done any other way.
The medical term for recording the strength of muscle contractions is electromyography (EMG). This test involves placing small electrodes on the skin or inserting needles into the muscles to measure electrical activity during muscle contraction and at rest. It is often used to diagnose nerve or muscle disorders.
electromyography
Electromyography (EMG)
Uterine contractions have the same name in medical terminology and lay language. The medical terminology combining form meaning uterine contractions is toco-.
Cystourethrogram is the medical term meaning recording of the bladder and urethra.
Contractions
The medical term for wave-like contractions is peristalsis. This is the rhythmic muscular movements that helps propel food and other materials through the digestive tract.
Vasography is the medical term meaning process of recording the vas deferens. Vasography produces a vasogram.
A cystogram is a recording of the urine in the bladder.
Tachycardia
tocodynamometer
The medical term for involuntary contractions of the eyelid is blepharospasm. This condition can cause the eyelid to twitch or close intermittently and may be temporary or chronic.
The eponym for those contractions is Braxton-Hicks.
Polysomnography is the recording commonly known as a sleep study.
Angiography is the medical term meaning the process of recording a picture of blood vessels. The resulting picture is an angiograph.