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apfinally
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Most textbooks say it begins in the mouth. In fact, THAT is a quote from a text. Does it? Define digestion, specifically. So where does it begin?
In the mouth. Saliva starts the digestive process.apfinally said:Most textbooks say it begins in the mouth. In fact, THAT is a quote from a text. Does it? Define digestion, specifically. So where does it begin?
The first step of digestion is ingestion, which is the process of taking in food through the mouth.
Digestion begins in the mouth, where food is broken down into smaller pieces by chewing and mixed with saliva.
Saliva contains enzymes that start breaking down carbohydrates in food, and also helps to moisten and lubricate food for easier swallowing.
No, the stomach is not where digestion begins. The stomach is responsible for further breaking down food with acid and enzymes, after it has been partially digested in the mouth.
The small intestine is where most of the nutrients from food are absorbed into the bloodstream. It also receives enzymes from the pancreas and bile from the liver to help with the digestion process.