Now this can be a cell that's part of the conduction system or it can just be another cardiac muscle cell.

这个细胞可能属于传导系统的一部分，或只是一个心肌细胞。

The starting point of the intrinsic conduction system is the sinoatrial node, or SA node.

内在传导系统的起点是窦房结。

Now in a normal electrical conduction system, the AV node is the only place where the signal can get through from the atria to the ventricles.

在一个正常的电传导系统中，房室结是心房向心室传导的唯一通路。

This ability is thanks to the intrinsic conduction system, which is the internal regulating system that causes the heart to contract rhythmically.

这种能力是由于内在的传导系统，这是导致心脏有节奏收缩的内部调节系统。

These blocks or delays usually happen because of some sort of damage or fibrosis to the electrical conduction system, the pathways that conduct the electrical signal.

心律失常一般由心脏传导系统（即电信号传导的通路）受损或纤维化导致。

The impulse is now passed from the bundle branches to the terminal branches of the intrinsic conduction system known as the Purkinje fibers.

脉冲现在从束支传递到被称为浦肯野纤维的内在传导系统的末端分支。

The specialized tissue of the intrinsic conduction system is unlike any other tissue in your body because it has both nervous and muscular characteristics.

内在传导系统的特殊组织不同于身体中的任何其他组织，因为它具有神经和肌肉特征。

The pacemaker cells at the start of the conduction system have the leakiest membranes, and therefore the fastest inherent rhythms, so they control the rate of the entire heart.

传导系统开始时的起搏细胞有最容易渗漏的膜，因此固有节律最快，所以它们控制整个心脏的速度。

This ability is thanks to the intrinsic conduction system, which is defined as the internal regulating system that causes the heart to contract rhythmically.

这种能力归功于内在传导系统，内在传导系统被定义为使心脏有节奏地收缩的内部调节系统。

That's due to sort of disorganized ion movement within the cardiomyocytes, and it could also be due to a disrupted electrical conduction system within the heart.

这是由于心肌细胞内某种杂乱无章的离子运动引起的，也可能是由于心脏内的电传导系统被破坏了。

Heart block describes a type of arrhythmia, or abnormal rhythm, that happens when the electrical signal gets held up and delayed, or blocked entirely at some point along the conduction system.

心脏阻滞是心律失常（即心律异常）的一种，发生于正常电信号在心电传导系统的某一节点被延误甚至是完全阻滞。

The impulses leap across synapse-like connections between the cells called gap junctions, and continue down the conduction system until they reach the atrioventricular node, or AV node, located just above the tricuspid valve.

这些脉冲跨越细胞之间称为间隙连接的突触状连接，并沿着传导系统继续前进，直到它们到达位于三尖瓣正上方的房室结或房室结。

So pacemaker cells are, in a way, your heart's very own brain, generating the initial spark that sends a current through your heart's internal wiring system, known as the intrinsic cardiac conduction system.

所以起搏细胞在某种程度上是心脏自己的大脑，产生最初的火花，通过心脏的内部线路系统发送电流，被称为内在心脏传导系统。

Next, the ectopic beat could happen during the PR segment, and because the ectopic depolarization happens relatively slowly, oftentimes, it will combine with the normal depolarization wave coming down the ventricular conduction system, resulting in a ventricular fusion beat.

其次，异位心搏可能发生在PR间期，因为异位去极化相对缓慢，它常会和在心室传导系统中下行的正常除极波融合，导致室性融合心搏。