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The mouth is the first part of the digestive system. It is here that the food is chewed. With the addition of saliva which contains the enzyme amylase the food is crushed made small enough to swallow with help from the lubricating saliva. It is formed into a bolus or small ball and passes down the Oesophagus to the stomach. It also helps with breathing because you can breath in and out with your mouth and you can eat with your mouth

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Thomas Lynch

Lvl 13
3y ago

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