Esophageal phase, in which the food passes down the esophagus, via peristalsis, into the stomach.

食期，食物通过动沿食向下进入胃。

What happens is that the normal wave-like contractions of the intestine, called peristalsis, grab this leading edge and pull it into the part of the bowel ahead of it.

通常情况下，的波状收缩运动，即动，会把套叠前缘送入远端中。

In peristalsis, the smooth muscles of the walls of your digestive organs take turns contracting and relaxing to squeeze food through the lumen, or cavity, of your alimentary tract.

在动中，消化器官壁的平滑肌轮流收缩和放松，以将食物挤出消化的。

The chyme slowly moves through the large intestine through small waves of peristalsis that take place over hours or even days.

在微小幅度的动下，食糜缓慢通过大；这个过程长达数小时甚至数天。

The bolus is then moved by peristalsis through the esophagus and into the stomach, where hydrochloric acid is secreted and pepsin begins the digestion process.

食团在食的动下被送入胃内；胃内随即分泌胃酸，并在胃蛋白酶的作用下开始进行消化。

Okay, so without these nerves, peristalsis in the gut is seriously impaired, because those muscles tend to lose the ability to relax, and they stay in their default contracted position, which essentially blocks the movement of feces.

那一旦这些神经缺失，动就会严重受损，因为这些肌肉往往会失去舒张能力，停留在默认的收缩形态，阻碍粪块移动。

This stage is called propulsion, and its initial mechanism is swallowing — which, as you know, is a voluntary action — but then it's quickly turned over to the involuntary process of peristalsis.

这个阶段叫做推进，它最初的机制是吞咽——如你所知，这是一个自愿的动作——但是很快就变成了非自愿的动过程。

Together, they perform what's called peristalsis, which is a series of coordinated wave-like muscle contractions that helps squeeze the food bolus in one direction.

内环肌与外纵肌的活动共同形成了的动；动就是指一系列协同进行的平滑肌的波状收缩，可以挤压食团，确保食物向前移动。

Rather, like the small intestines, each ureter features a layer of smooth muscle that contracts to move urine using peristalsis.

相反，就像小一样，每个输尿都有一层平滑肌，该平滑肌通过动收缩以移动尿液。

But most people also experience a few mass peristalsis movements a day — big, intense contractions that clear out a large swath of intestine at once, pushing feces into the rectum. These often occur just after eating.

但是大多数人一天也会经历一些大规模的动运动——巨大而强烈的收缩，同时清理一大片，将粪便推入直。这些通常发生在刚吃完东西之后。

And finally, the innermost layer is the renal pelvis, a funnel-shaped tube surrounded by smooth muscle that uses peristalsis to move urine out of the kidney, into the ureter, and into the bladder.

最后，最内层是肾盂，一个被平滑肌包围的漏斗状，利用动将尿液从肾脏移出，进入输尿，进入膀胱。

Now there's a lot of mechanical action and peristalsis going on here, but there's also a ton of chemical digesting too.

这里有许多机械动作和动，但也有大量的化学消化。

These neurons would normally do the peristalsis, this kind of squeezing motion of the intestine that pushes the food through it and that allows us to absorb nutrients and water.

这些神经元通常会进行动，这种的挤压运动将食物推过，使我们能够吸收营养和水分。

After becoming the first scientists to describe peristalsis, the muscular contractions that propel digested food along the intestine, they began investigating whether the nervous system influenced digestion.

在描述了动——推动消化食物沿前进的肌肉收缩——成为首批科学家后，他们开始研究神经系统是否影响消化过程。

You might have a difference in the motility, the peristalsis, the movement of content through the intestine, which makes you feel more distended, more bloated.

您可能会出现动、内容物通过的动运动方面的差异，这会使您感到更加胀满、更加腹胀。

So that creates something called reverse peristalsis, where the stool is going back up in the wrong direction instead of coming out.

这就产生了一种称为逆动的情况，即粪便向错误的方向——即向上移动， 而不是正常排出。

This process, called peristalsis, is also how food is moved through the stomach and intestines.

这一叫做动的过程也是食物通过胃和的方式。

So peristalsis is the natural movement of the muscles that allows food to go down, right?

所以动是肌肉的自然运动，能让食物往下走，对吧？

It's such a powerful drug in terms of improving the peristalsis.

它在改善动方面是一种非常强大的药物。

And so the movement stimulates peristalsis.

因此，这种运动能刺激动。