part_of part of has part has_part contributes to morphology of myocyte of atrioventricular node conducting system of heart bundle of His MA:0002576 FMA:9484 His bundle UBERON:0002353 GAID:559 SCTID:362022007 atrio-ventricular bundle AV bundle atrioventricular fasciculus atrioventricular bundle Wikipedia:Bundle_of_His galen:BundleOfHis bundle of His A part of the His-Purkinje system that transmits signals from the AV node to the cardiac Purkinje fibers[GO]. NCIT:C32160 MESH:D002036 UMLS:C0006382 EMAPA:35152 atrioventricular bundle muscle tissue uberon A-V bundle His-Purkinje system conducting tissue of heart cardiac muscle tissue of ventricle