Human Duodenum Pictures, Images and Stock Photos

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The liver is a vital organ of the digestive system present in vertebrates and some other animals. It has a wide range of functions, including detoxification, protein synthesis, and production of biochemicals necessary for digestion.

Research shows that most ulcers of stomach ulcers and the duodenum develop because of infection with Helicobacter pylori. Bacteria weakens the protective mucous layer of the stomach. This allows acid to seep in and injure the underlying stomach cells.

In the human digestive system, the process of digestion has many stages, the first of which starts in the mouth (oral cavity). Digestion involves the breakdown of food into smaller and smaller components which can be absorbed and assimilated into the body.

Heartburn and Gastroesophageal Reflux Disease (GERD). The stomach releases strong acids to help break down the food. If the esophageal sphincter opens too often or does not close tight enough, stomach acid can reflux or seep back into the esophagus, damaging it and causing the burning (heartburn).

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