Proximal atrioventricular bundle, atrioventricular node, and distal atrioventricular bundle are distinct anatomic structures with unique histological characteristics and innervation.
Becker
A
A
Anderson
R
R
D000818:Animals; D001283:Atrioventricular Node / Q000033:anatomy & histology*; D004285:Dogs; D006329:Heart Conduction System / Q000033:anatomy & histology*; D006801:Humans; D012756:Sheep