Atrioventricular trunks are connectors of the heart that assist in proper blood flow. Some synonyms for atrioventricular trunks include the atrioventricular bundle, the bundle of His, or the atrioventricular node. These terms refer to the same structure, which is a pathway of specialized heart cells that facilitate the communication between the upper and lower chambers of the heart. Another synonym for atrioventricular trunks is the AV junction. This junction is responsible for the regulation of the heart rate and the coordination of the contractions of the atria and the ventricles. Overall, the synonyms for atrioventricular trunks are used interchangeably and all describe the same essential heart structure.