part of part of results in acquisition of features of myocyte of atrioventricular node atrioventricular node development cardiac septum cell differentiation cell differentiation cardiac pacemaker cell differentiation atrioventricular node cell differentiation GO:0060922 AV node cell differentiation The process in which a relatively unspecialized cell acquires specialized features of an atrioventricular (AV) node cell. AV node cells are pacemaker cells that are found in the atrioventricular node. 2009-09-29T11:07:06Z dph