This is typically due to an uninhibited detrusor muscle that contracts randomly.

这通常是由于不受抑制的逼尿肌随机收缩。

Whatever the mechanism, they found that the ant's jaw muscles had contracted so hard, they'd been irreparably damaged.

无论机制为何，他们发现，蚂蚁颚肌收缩得非常严重，已经受到了不可挽回的损伤。

This is followed almost immediately by the sudden closure of the vocal cords and the opening between them, which is called the glottis.

几乎在膈肌收缩的同时，两片声带就开始合拢，关闭它们之间的缝隙。也就是所谓的声门。

But flexing your diaphragm isn't something you do to lift things.

但是收缩你的膈肌并不是为了举东西。

Instead, watch what happens when you flex your diaphragm.

，当你收缩膈肌时会发生什么。

So if we step through it, respiratory system basically you contract your diaphragm.

所以如果我们一步步来，呼吸系统基本上就是收缩膈肌。

So a hiccup is when you have a nerve stimulating the diaphragm to contract quickly.

所以，打嗝就是指神经刺激膈肌快速收缩的现象。

After the diaphragm contracts, it relaxes, thus decreasing thoracic volume and increasing intrapulmonary pressure.

膈肌收缩后，松弛，从而减少胸腔容积并增加肺内压力。

When the caudofemoralis retracts, it pulls backwards on the leg.

当股尾肌收缩时，它会向后拉腿。

I think that you will get groups of genetics, though, that are more advantageous to quick twitch.

我认为你会得到一些基因群体，它们对快速收缩肌更有优势。

And it causes an increase in parasympathetic stimulation and decrease in sympathetic stimulation which makes the detrusor muscle contract and the internal sphincter relax.

脊髓射导致副交感神经兴奋，而交感神经兴奋受到抑制，造成逼尿肌收缩而内扩约肌松弛。

And then once that happens, after the diaphragm contracts, the glottis closes.

一旦发生这种情况，在膈肌收缩之后，声门就会关闭。

It begins with an involuntary spasm or sudden contraction of the diaphragm, the large dome-shaped muscle below our lungs that we use to inhale air.

它开始于一种无意识的痉挛或膈肌的收缩，膈肌是个大的、圆顶形的肌肉，位于肺的下方，用于吸入空气。

These neurons, when activated by seeing someone laugh, cause the contraction of our zygomatic muscles which are responsible for smiling.

这些神经元在到他人笑时被激活，从而引起我们的颧肌收缩， 而颧肌正是负责微笑的肌肉。

In a push-off stage, when the ball of your foot pushes off the ground, the quad muscle contracts which creates the force against the ground that propels you forward.

前进阶段，当脚跟离开地面时，股四头肌收缩，在地面上产生推动我们前进的力量。

Somebody with a knee pain, like if I put them in an isometric quad contraction, it would oftentimes get, you know, reduce the knee pain, right?

患有膝痛的人， 比如我让他们进行等长四头肌收缩时，通常能够减轻膝痛，对吧？

He thought if you could get the diaphragm to contract enough, it could interrupt the spasm, and then you might be able to short-circuit this hiccup loop.

他认为， 如果能促使膈肌充分收缩，就可能打断其痉挛状态， 从而有可能打破这种打嗝循环。

I mean, imagine a one-meter-long straw in a glass of water and how hard you would have to, you know, engage your diaphragm to suck water through that straw.

我的意思是，想象一下，如果你要用一根一米长的吸管从水杯里吸水，你得多么费力地收缩膈肌才能做到啊。