Ectopic beats can also have " triggered activity" which is where cells depolarize early.

异位搏也有“激发活动”，即在细胞提前除极的位置。

And, to the degree that the heart's in-between, the heart will be depolarized and normal rhythm will, will be restored.

当脏处于这者之间时，脏会去极化，恢复正常的律。

Another type of atrial ectopic focus is a reentrant loop, which is when there's some tissue that doesn't depolarize right.

另一类房性异位起搏点是一折返环路，主要发生在当某些组织不能正确地除极的时候。

And this is how you could tell if the PVC depolarized the atrium or not.

你能由此区分室性期前收缩是否除极了房。

For those whose compasses were not depolarized there seemed many odd things in these houses.

对于那些罗盘没有去极化的人来说，这些房子似乎有很多奇怪的东西。

The cells of the SA node can depolarize on their own without any external influence.

SA结细胞可以自行去极化而不受外界影响。

A shorter than normal PR interval, of less than 3 small squares, signifies that the ventricles depolarize too early.

PR间期短于正常值，＜3小方格，表明室去极化过早。

In bundle branch blocks, the UN-affected ventricle depolarizes first.

在束支传导阻滞中，未受影响的室首先去极化。

In a normal heart, the two ventricles are depolarized simultaneously by the two bundles and contract at the same time.

在正常脏中，束支同时使室去极化，室同时收缩。

The left ventricle depolarizes NORMALLY toward V6, away from V1, producing a positive deflection in V6, negative in V1.

正常情况下，左室向V6导联去极化，远离V1导联，V6导联产生正偏斜，V1导联为负偏斜。

Normally, all my sites are depolarized at this time, and there is no electrical flow in the cardiac muscle.

正常情况下，所有区域同时去极化，肌没有流。

When the atria are full of blood, the SA node fires, electrical signals spread throughout the atria and cause them to depolarize.

房充盈时，窦房结立即发出冲动，信号会传遍整房并使其去极化。

In this case, after being depolarized, the sinus node waits its 1 second, and then sends another signal and again we carry on as normal.

在这种情况下，窦房结在除极之后等待了1秒，然后发放另一信号，搏得以重新正常进行。

One important effect of the premature depolarization is that the ectopic focus will depolarize the cells of the SA node, causing the SA node to skip a cycle.

过早除极的一重要影响就是异位起搏点将会使窦房结细胞除极，导致窦房结跳过一动周期。

That process started by depolarizing the cell — that is, pushing the cell's membrane potential from negative toward positive, past a threshold that triggered voltage-gated ion channels to open.

这过程是从细胞去极化开始的——也就是说，将细胞膜位从负极推高到正极，超过了触发压门控离子通道打开的阈值。

But eventually, the resting membrane potential gets so high that it's above the threshold potential, meaning that once the muscle depolarizes and contracts, it can't repolarize to allow another contraction.

但最终，静息位变得太高，以至于超过阈值点位，这意味着一旦肌肉去极化收缩，就不能复极化以进行下一次收缩了。

Now, if we measure out the interval between each SA node fire, we see that it should have fired here, but it doesn't because it was depolarized by the ectopic focus.

这时，如果我们测量每一窦房结冲动的间隔，我们可以看到它本应在此处发放，但并没有，因为它被异位起搏点除极化了。

With low levels of extracellular calcium, voltage-gated sodium channels are less stable and more likely to open up, which allows the cell to depolarize more easily, and makes the neuron more excitable.

当细胞外钙的水平较低时，压门控钠离子通道不稳定，更容易开放，这使细胞更容易去极化，并使神经元更易兴奋。

Remember that at rest, cells are negatively charged relative to the slightly positive outside environment and when they depolarize, the cells become positively charged, leaving a slightly negative charge in the outside environment.

要记住在静息状态下，细胞带负，其外部环境则相对稍带正；当它们去极化时，细胞带有正，它的外部环境带有负。

Most cells in your body only depolarize after being triggered by an external stimulus, or by a neighboring cell, in a long chain reaction of action potentials that's set off by the nervous system.

你体内的大多数细胞只有在被外部刺激或邻近细胞触发后才会去极化，这是由神经系统引发的动作位的长链反应。