Dense collagenous sheath of purkinje myocyte of atrial septal branch of anterior internodal tract
dense collagenous sheath of purkinje myocyte of atrial septal branch of anterior internodal tract
Dense collagenous sheath of purkinje myocyte of atrial septal branch of anterior internodal tract
dense collagenous sheath of purkinje myocyte of atrial septal branch of anterior internodal tract