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。
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）。
The conduction system in the avian heart is specialized and contains a recurrent bundle branch that innervates the right atrioventricular valve.
家禽的心脏传导系统比较特殊，它含有一个返回分支束，使右房室瓣受传导神经的支配。
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