Sinoatrial node . You ever heard of it ?

窦房结你听说过吗?

The sinoatrial node is located at the junction of the superior vena cava and the right atrium .

窦房结位于上腔静脉与右心房的交界处。

Effects of nicotine on automaticity of sinoatrial node in rabbit heart .

烟碱对兔心窦房结自律性的影响。

Normally the sinoatrial node generates regular electrical pulses that spread across the chambers of the heart , causing the cells to contract in synchrony .

正常情况下，窦房结产生规律的电脉冲，传入各心房，再带动细胞同步收缩。

In this paper , by using a 2d anatomical model of the intact sinoatrial node ( sa ) node and surrounding atrial muscle of the rabbit heart proposed by zhang et al . , The effect of the distribution of death cells on the pacemaking and conductibility of sa node is investigated by computer simulation .

本文利用zhang等人构建的兔子心脏窦房结心房细胞完整的二维解剖模型，通过计算机仿真模拟研究了死亡细胞分布对心脏起搏和传导的影响。