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

这一叫做蠕动的过程也通过胃和肠的方式。

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

在微小幅度的肠蠕动下，糜缓慢通过大肠；这个过程长达数小时甚至数天。

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.

内环肌纵肌的活动共同形成了肠道的蠕动；肠蠕动就指一系列协同进行的平滑肌的波状收缩，可以挤压团，确保向前移动。

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.

团在管的蠕动下被送入胃内；胃内随即分泌胃酸，并在胃蛋白酶的作用下开始进行消化。

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，肠管的波状收缩运动，即肠蠕动，会把套叠前缘送入远端肠腔中。

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，肠道蠕动就会严重受损，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。