The Human Digestive System

The advantage of reducing the food size of the entire gastrointestinal tract is to maximize the surface area and make our body easier and faster to absorb nutrients. Mucus also keeps the mouth and upper digestive tract lubricated in saliva. As we swallow our food, it goes through the mouth and begins to move along the pharynx through the esophagus into the stomach. A small flap called the epiglottis prevents food from entering our respiratory system by covering the entrance of the throat so food needs to move under the esophagus.

The human digestive system is used in the human digestive process. The human digestive system consists mainly of the digestive tract or a series of structures and organs through which food and body fluids are absorbed by the blood during processing. This system also includes structures to allow waste to pass through during the removal process and other organs that provide juices necessary for the digestion process. The digestive tract starts with the lips and ends with the anus

In humans, the digestive system consists essentially of the gastrointestinal tract. In particular, the gastrointestinal tract consists of organs, pharynx, esophagus, stomach, small intestine, large intestine and rectum organs. It also includes auxiliary digestive glands such as salivary glands, liver, gall bladder and pancreas. These organs and glands work together to digest food into smaller components, which are absorptive forms absorbed by the body. Digestion and chewing (chewing) forms a bolus and helps to begin digesting in the mouth. The bolus is swallowed from the esophagus into the stomach and mixed with gastric juice. The resulting atheroma travels to the small intestine (especially the duodenum) where it is completely decomposed (absorbed as lactate) into the lymphatic system. Reabsorption of water and other minerals occurs in the large intestine, especially in the colon