How your dog’s digestive system works

The pancreas serves as the most vial organ in the digestive process for producing and secreting enzymes needed for the digestion of chyme and the prevention of cell damage due to pH. In addition to the pancreas secreting into the duodenum, bile, which is stored in the gall bladder and produced by the liver, is secreted as well. Bile salts, which are the active portion of bile in the digestion process, primarily assist in the digestion and absorption of fat but also help with absorption of fat-soluble vitamins and aids pancreatic lipase in the small intestine. Finally, bile salts are necessary for the absorption of cholesterol, which takes place in the lower small intestine and are circulated to the liver via the portal vein. Figure 3. Villus heights of deodenum intestinal mucosa Once the chyme passes though the duodenum, the digestion process is in full swing.
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As a prevention against acute indigestion, the dog’s stomach has high amounts of hydrochloric acid to break down the chunks passed from the mouth. The dogs stomach also has a good reverse action and can regurgitate food that may be too large. The stomach juices are capable of dissolving large chunks of food and bones. By the time the food reaches the small intestine, the juices have broken it down to a state where it can be easily processed and assimilated.
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