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Digestion and absorption. Yummy! The length of the the small intestine allows for more absorption time and its epithelium has specialized villi and the villi have microvilli adding to its surface area and absorption ability. Although digestion does begin in the oral cavity turning the food we eat into a bolus, and the stomach does it's job by turning the bolus into chyme, most of the digestion and absorption takes place in the small intestine. The stomach will squeeze out chyme, in small quantities at a time, into the first part of the small intestine: the duodenum, which is where most of the digestion will take place thanks to more secretions by the gallbladder (stores bile) and pancreas (produces bile). Then it gets moved along into the jejunum (I always thought that would make a great doggie name) of the small intestine; more absorption along the way, and finally the to the last part of the small intestine, the ileum. At this point everything will have been digested and most of the nutrients will have been absorbed, and now off to the large intestine for its next journey out into the world...life is good!

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9y ago

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