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Digestion

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1. Starting in the brain, before you eat

(chemicals, food, mouth)

Food ... As soon as you smell it, see it and think about it, digestion begins!

Saliva (suh-lye-vuh) begins to form in your ___________. As you chew, the saliva breaks down the __________ in the __________, helping to make it mushy and easy to swallow.

2. Ready to swallow

(second, throat, tongue)

Your ________ pushes a tiny bit of chewed-up food called a bolus (bow-lus) toward the back of your ___________ and into the opening of your oesophagus, the ___________ part of the digestive tract.

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