The Digestive System: The Study Of The Digestive System

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Digestive System
The digestive system is a very large system in our bodies. This system runs all the way from the mouth, where we put whole food in, to the large intestine that includes the rectum and anus, where waste exits. The digestive system is composed of the mouth, esophagus, liver, stomach, gallbladder, pancreas, small intestine, large intestine, rectum, and anus (Diseases). The gastrointestinal (GI) tract that makes up the digestive system includes all of these organs other than the liver, pancreas, and gallbladder, which are digestive accessory organs that food does not have to pass through to be broken down (The Digestive Sytem and Body Metabolism). The study of this system is called gastroenterology which broken down translates to the study (ology) of the stomach (gastro-) and intestines (entero-) (The Digestive Sytem and Body Metabolism). The …show more content…

The three parts of the small intestine, the duodenum, jejunum, and ileum extend all the way from the pylorus to the beginning of the large intestine or colon (The Digestive Sytem and Body Metabolism). The small intestine is where the majority of nutrient absorption occurs (The Digestive Sytem and Body Metabolism). Peristalsis in the small intestine mixes the food with the digestive juices from the pancreas, liver, and intestine (Diseases). Then the walls of the intestine absorb the digested nutrients into the bloodstream so that the blood can deliver the nutrients to the rest of the body (Diseases). This is the final digestion process of proteins and starches but the bacteria that are in the small intestine only produce some of the enzymes needed to digest carbs (Diseases). The remaining liquid waste is pushed from the end of the small intestine into the beginning of the large intestine, the cecum, after it is processed (The Digestive Sytem and Body

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