THE CONNECTING PATHWAYS BETWEEN THE SINUS NODE AND A-V NODE AND BETWEEN THE RIGHT AND THE LEFT ATRIUM IN THE HUMAN HEART.
D001283:Atrioventricular Node; D006321:Heart; D006325:Heart Atria; D006329:Heart Conduction System; D006653:Histology; D006801:Humans; D012849:Sinoatrial Node
HEART CONDUCTION SYSTEM; HISTOLOGY