What does your stomach do for you?-By Dr Harold Gunatillake Transcript: The stomach is a comma-shaped elastic expandable bag compared to a bagpipe, that takes in food from your gullet and sends partly digested food to the next part of the gut called the duodenum. The exit end of the stomach is called the pylorus that has a sphincter mechanism to open when the churned food in the stomach is ready to be passed into the duodenum. Processing of the food in the stomach takes place through a chemical process. This bag is small when you eat small meals, in small quantities using a chopstick like the Chinese and Japanese do. Some Sri Lankans eat lot of rice and curries, without eating a small amount of rice and more curries. The stomach bag can accommodate lot of food by expanding, adding on to your potbelly. The stomach secretes acid and ...