The function of segmentation is to
◦ move the food through the digestive tract.
◦ churn the food and mix the contents with the digestive tract.
◦ bring the contents to the wall of the tract where they could be absorbed.
◦ produce a wavelike push of the gut contents through the system.
◦ churn the food and mix the contents with the digestive tract and also bring the contents to the wall of the tract where they could be absorbed.