Exploring the Intricacies of Internodal Conduction Pathways In the realm of cardiovascular physiology, understanding the anatomy and physiology of internodal conduction pathways is crucial. These pathways serve as the communication network of the cardiac conduction system, transmitting sinus node action potentials to the atrioventricular node and atrial working myocytes. The recent review published in Advances in Physiology Education revisits the century-long debate on these pathways, emphasizin