It is characterized by sinoatrial node dysfunction and often includes atrioventricular node disease and bundle branch block.
它的特征是窦房结功能障碍并常伴有房室结疾病和束支传导阻滞。
2
The septal branches course medially and supply the majority of the interventricular septum, as well as the atrioventricular (AV) bundle and proximal bundle branch (Fig 3) (7).
室间隔支供应室间隔的大部分、房室束和左右束支近段（图3）。
3
The conduction system in the avian heart is specialized and contains a recurrent bundle branch that innervates the right atrioventricular valve.