The human digestive

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Chime is the semi-fluid partially digested food that is mixed and gastric juices. The chime now goes through the tantrum, which is the lowest part of the stomach. It is funnel-shaped and joins the stomach and the duodenum. Lower Gastrointestinal Tract The lower gastrointestinal tract comprises the small intestine, large intestine and the anus. During digestion the lower gastrointestinal tract helps th Proshred Elite e body to assimilate all the nutrients that have been simplified by the upper gastrointestinal tract. Small intestine: Also known as the small bowel, the small intestine is the longest section of the digestive tract. However, it is called the small intestine because it has a smaller diameter than the large intestine. The main purpose of the small intestine is to absorb nutrients from the food during digestion. It is made up of three parts - the duodenum, jejunum and the ileum. Duodenum: The duodenum is the shortest part of the small intestine and is connected to the lower portion of the stomach. The main function of the duodenum is to break down the food using secreted by the pancreas and bile secreted by the liver. The jejunum is the mid-section of the small intestine. The most important function of this organ is the absorption of carbohydrates and proteins. It has a specialized lining and small, finger-like projections called villa. This villa increases the internal absorptive surface area which in turn helps in the absorption of more nutrients. The villa is also connected to the blood vessels so that the circulating blood can carry the nutrients to different parts of the body. Ileum: The ileum is the final section of the small intestine. Its main function is to absorb vitamins and other nutrients that are missed by the jejunum. The undigested