Exploring the Digestive and Excretory Systems: Digestion in the Body

The video tutorial explains the digestive process, starting with mechanical digestion in the mouth and chemical digestion initiated by saliva. It describes the journey of food through the esophagus to the stomach, where both mechanical and chemical digestion continue. The small intestine completes digestion and absorbs nutrients, while the large intestine absorbs water and forms waste for elimination.

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