They're muscle cells and they're capable of contracting,

它们是肌细胞具有收缩功能
meaning that this myocyte here can shorten itself.

也就是说这些肌细胞可以自己缩短
It can make itself shorter by contracting just like a muscle,

这些细胞可以像骨骼肌一样可以收缩变短
a whole muscle contracts.

一个完整的收缩过程
That's different than neurons

这一点和神经元截然不同
so they have this capacity to transmit action potentials;

所以说它们不但可以传递动作电位
they have this capacity to contract.

它们也具有收缩功能
Now,in muscle cells,

在骨骼肌细胞中
as we'll see in a few minutes, those things are linked.

我们花几分钟讲讲这些相关内容
When a muscle cell experiences an action potential

当一个肌细胞接收到动作电位时
it doesn't do what a nerve cells does,

其反应和神经细胞是完全不同的
which is pass that information along

神经细胞接收到动作电位后会将信号