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Digestive System Video:Digestive System Overview Video Liver and the Hepatic System Video Nerves and the Digestive System Video |
The mouth or oral cavity is the first step in the digestive process. The teeth tear and grind solid food particles into smaller pieces that can be swallowed. This chewing also mixes the food with saliva. This saliva contains enzymes that start to break down the starch and fat in the food. Interested in learning more about the mouth? Check out the following videos on the mouth. For additional information, also see our mouth reference materials. |
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