Jens Stoltenberg served as Prime Minister.
The stomach is a muscular , hollow , dilated part of the gastrointestinal tract that functions as a vital digestive organ .. gastrointestinal tract. gastrointestinal tract. digestive organ. digestion. The stomach is present in humans and many other animals , including several invertebrates .. In the digestive system the stomach is involved in the second phase of digestion , following mastication -LRB- chewing -RRB- .. digestion. digestion. mastication. mastication. In humans and many other animals , the stomach is located between the oesophagus and the small intestine .. oesophagus. oesophagus. small intestine. small intestine. It secretes digestive enzymes and gastric acid to aid in food digestion .. digestion. digestion. gastric acid. gastric acid. The pyloric sphincter controls the passage of partially digested food -LRB- chyme -RRB- from the stomach into the duodenum where peristalsis takes over to move this through the rest of the intestines .. pyloric sphincter. pyloric sphincter. chyme. chyme. duodenum. duodenum. peristalsis. peristalsis