Electrogastrogram
![3D human gastroenterogramm. On a vertical axis a spectrum of signal from GI smooth muscle in µV. Frequency ranges from left to right: large intestine, stomach, ileum, jejunum, duodenum](/Images/godic/202501/10/Example_of_3D_gastroenterogramm5217.jpg")
An electrogastrogram (EGG) is a graphic produced by an electrogastrograph, which records the electrical signals that travel through the stomach muscles and control the muscles' contractions. An electrogastroenterogram (or gastroenterogram) is a similar procedure, which writes down electric signals not only from the stomach, but also from intestines.