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Bob is chewing the food this is what happens to him. There are 3 types of teeth. The molars are for chewing and grinding, canines are for ripping and tearing, incisors are for slicing and cutting. As the food is chewed it is mixed with the saliva.
When the food is swallowed it goes into the oesophagus. The oesophagus has two sets of muscle fibres, the longitudinal muscles and the circular muscles. FUN FACT: In the stomach, the food is churned until it turns into a soupy mixture called chyme.
Inside the stomach the food is mixed with gastric juice and HCL acid to break down the food. The acid kills most bacteria and makes the pepsin work. Pepsin helps break down protein. Enzymes are hard at work here.
•There are 2 parts of the small intestine the duodenum and the ileum. Bile and pancreatic juice are added to the food in the duodenum. Intestinal juice is mixed with the food as it passes along the ileum.
Undigested food is made into faeces and stored before passing out through the body.
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