Peristalsis.
The partially digestive food in the stomach is known by the name of Chyme.
That wavelike movement of the digestive tract is known as peristalsis.
Gut movement is also known as peristalsis which, quite literally means the wavelike muscle contractions of the digestive tract. Peristalsis occurs for two main reasons: 1) To move the food along throughout the digestive tract so as to move it closer and closer to your anus for excretion. 2) To make sure the nutrients are being absorbed from the food as well as exposing it to the digestive juices secreted from your digestive system so that it may be entirely digested.
Peristalsis also occurs in the stomach so that it can mix the food together with stomach juices and move the partially digested food into the first part of the small intestine (known as the duodenum).
The esophagus (also spelled Oesophagus) is the tube that connects the mouth and the stomach. It works through continuous wavelike muscle contractions known as peristalsis, along with downward gravity, to move food and liquids from the mouth and throat into the stomach.
Pigeons regurgitate a partially-digested mixture known as crop milk for their chicks.
The sphincter that allows chyme to pass into the small intestine is known as the pyloric sphincter. It is located at the end of the stomach and regulates the release of partially digested food into the small intestine for further digestion and absorption.
Roughage.
contractions.
peristalsis
The muscular contractions that occur before birth are called Braxton Hicks contractions. These are also known as "false labor" contractions and help to prepare the uterus for the actual labor process. They are typically irregular and can vary in intensity, serving to tone the uterine muscles and promote blood flow to the placenta. Unlike true labor contractions, Braxton Hicks contractions do not lead to cervical dilation.
there are muscular contractions in the oesophagus which help to move the food this rhythmic movement is known as PERISTALSIS