part_of part of part of occurs in occurs in myocyte of atrioventricular node action potential cardiac muscle cell action potential AV node cell action potential An action potential that occurs in an atrioventricular node cardiac muscle cell. AV node cardiac muscle cell action potential atrioventricular node cardiac muscle cell action potential biological_process 2011-11-10T08:58:56Z GO:0086016 AV node cell to bundle of His cell signaling