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Content: Duodenum regulates the rate of stomach emptying through hormones Secretin and Cholecystokinin, which are releasing with respect to acidity and fatty stimuli in the chyme. Once gastric chyme reach duodenum, the liver, & gall bladder release bile. In addition, the pancreas releases sodium bicarbonate (neutralize acid chyme from the stomach) and digestive enzymes (trypsin, lipase and amylase) that break down fats, proteins and carbohydrates. Jejunum
Jejunum is the middle part of the small intestine of length 2.5 meters where absorption of amino acids (from proteins), glucose (from carbohydrates), vitamins, and minerals takes place. The process of peristalsis pushes the food in the jejunum. The pH in the jejunum is maintaining at neutral or slightly alkaline. Ileum
Ileum is the final part of the small intestine of length about two to four meters. The function of the ileum is to absorb vitamin B12, bile salts, and those digestion products that are not absorbed by the jejunum. Book traversal links for Small Intestine
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