DIGESTIVE SYSTEM- A REVIEW ARTICLE

The digestive system is well adapted for ingesting food breaking it down both mechanically and enzymatic and the absorbing the breakdown products and transporting them to the liver form .separate processes are involved in digesting carbohydrate ,proteins, lipids. The digestive system is well adapted for ingesting food, breaking it down, both mechanically and enzyme and then absorbing the breakdown products and transporting them to the liver. Separate processes are involved in digesting carbohydrates, proteins, and lipids. Many aspects of the digestive process are regulated by neural (autonomic) and local hormonal influences. The structure of the gastric mucosa is well designed to both produce and protect itself from the low pH generated by the secreted hydrochloric acid. The exocrine pancreas produces digestive enzymes in an inactive form. Activation usually occurs within the lumen of the small intestine. The liver receives the bulk of the absorbed nutrients via the portal vein and then uses them for the synthesis of many larger molecules. It includes many more cells than the number present in the human body. These microbes have evolved symbiotically along with the digestive system.