In monogastric animals, food begins its journey in the mouth, where it is mechanically broken down and mixed with saliva. It then travels down the esophagus to the stomach, where gastric acids and enzymes further digest it. The partially digested food moves into the small intestine, where nutrients are absorbed into the bloodstream. Finally, any indigestible material passes into the large intestine, where water is absorbed, and the remaining waste is excreted through the rectum.
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