Peristalsis describes the involuntary wave of muscle contractions that happen naturally in your digestive tract. This ...

Peristalsis is also at work here, moving food through and mixing it with enzymes from the pancreas and bile from the liver. The duodenum is largely responsible for the continuing breakdown of food.

After swallowing, the bolus enters the esophagus, where gravity and muscle contractions help move it down to the stomach through a process called peristalsis. Peristalsis is the slow contraction ...

The lower parts of the stomach contract in waves (called peristalsis) that help to mechanically break down food and mix it with digestive juices. This mixture of food and digestive juices is ...