The Gastrointestinal tract Essay

The gastrointestinal tract is a band of organs that perform the method by which meals, containing nutrition, is eaten and separated into different components. This breakdown will allow for the digested material to feed the intestinal wall into the blood stream. The digestive process contains a number of steps that take place in many different organs. The first step of digestion begins on the mouth, where the food gets into the mouth. Saliva is released from the salivary glands. The saliva consists of enzymes such as Ptyalin, which starts sugars digestion. The enzymes also provide lubrication to assist in the nibbling and ingesting of the food. The food after that goes down the esophagus and into the stomach, where the next step of digestive function takes place. Inside the stomach, a variety of hydrochloric acidity and Pepsin, which is released by the tummy wall, liquefies the food. Simultaneously, a material called innate factor binds Vitamin W in food and different gastric nutrients, such as Pepsin (which begins protein digestion), which are secreted by the belly wall. Secretions of mucus protect the stomach from its digestive digestive enzymes. The food can then be mixed in the stomach, making it chyme(digested food). The physical pumping movement called peristalsis churns the chyme around. The chyme then passes through the pyloric valve by peristalsis to the first portion of the small is going to, the duodenum. The duodenum is exactly where most of the substance digestion occurs. Here, haine from the gallbladder and digestive enzymes from the pancreatic and intestinal walls match the chyme to begin a final part of digestion. Bile liquid is created inside the liver, and stored in the gallbladder. Bile aids in the mechanical digestive function of excess fat. The pancreas and human gland cells in the small intestinal tract secrete intestinal enzymes that chemically break down complex food molecules in simpler types. These nutrients include trypsin for necessary protein digestion, amylase for carbs...

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