On nerves and nerve endings in the conducting system of the moderator band (septomarginal trabecula).
D000818:Animals; D001341:Autonomic Nervous System / Q000033:anatomy & histology*; D002395:Catecholamines / Q000032:analysis; D002802:Cholinesterases / Q000032:analysis; D006329:Heart Conduction System / Q000166:cytology / Q000294:innervation*; D006352:Heart Ventricles / Q000294:innervation; D006651:Histocytochemistry; D008856:Microscopy, Fluorescence; D013552:Swine
D002395:Catecholamines; D002802:Cholinesterases