Wed June 20, 2012 By: Sakshi

how is the food moved in a regulated manner in the digestive tube? why does it move in a regulated manner?

Expert Reply
Thu June 21, 2012
Food is moved through the alimentary canal by a wavelike muscular motion known as peristalsis, which consists of the alternate contraction and relaxation of the smooth muscles lining the tract. These peristaltic movements occur all along the gut. In this way, food is passed through the digestive tube in a regulated manner.  
It is necessary to move the food in a regulated manner along the digestive tube so that it can be processed properly in each part.
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