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From Beaumont's Experiments and Observations on the Gastric Juice and the Physiology of Digestion, 1838 (p.27) On June 6, 1822, an employee of the American Fur Company on Mackinac Island named Alexis St. Martin was accidentally shot in the stomach at close range by the discharge of a shotgun loaded with buckshot that injured his ribs and his stomach.
Alexis Bidagan dit St-Martin (April 8, 1802 [a] – June 24, 1880) was a Canadian voyageur who is known for his part in experiments on digestion in humans, conducted on him by the American Army physician William Beaumont between 1822 and 1833.
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
Gastroenterology (from the Greek gastḗr- "belly", -énteron "intestine", and -logía "study of") is the branch of medicine focused on the digestive system and its disorders. [1] The digestive system consists of the gastrointestinal tract, sometimes referred to as the GI tract, which includes the esophagus, stomach, small intestine and large ...
In most vertebrates, digestion is a multistage process in the digestive system, starting from ingestion of raw materials, most often other organisms. Ingestion usually involves some type of mechanical and chemical processing. Digestion is separated into four steps: Ingestion: placing food into the mouth (entry of food in the digestive system),
Colorectal cancer, per the American Cancer Society, starts in the colon or the rectum, which make up the large intestine in the digestive system. It’s the third most common cancer in the world ...
It was known that the pancreas secreted digestive juices in response to the passage of food (chyme) through the pyloric sphincter into the duodenum. They discovered (by cutting all the nerves to the pancreas in their experimental animals) that this process was not, in fact, governed by the nervous system.
Douglas Grundy/Three Lions via Getty ImagesDiabetes was a fatal disease before insulin was discovered on July 27, 1921. A century ago, people diagnosed with this metabolic disorder usually ...