One of the main functions of the digestive organ is absorption - the process by which nutrients, water and some gases pass through the epithelial cells of the intestinal tract into the blood and lymph or, less commonly, into the cells of other organs. One of the most important differences between resorption 2 and other metabolic and food processes is characterized by the complex structural mechanism of the intestinal epithelial layer located between the cells. This interaction ensures the integrity of all tissues of the body and disruption of the resorption process 2 can lead to pathologies of organ function and cause unpleasant consequences, such as pain or dysfunction. Disruption of resorption processes is observed in various intestinal diseases, obstruction of the 2-section length of the esophagus, cecal syndrome, changes in the topography or segmentation of the esophagus and other pathologies. In this case, it is extremely important to identify possible deviations from the norm by tests and examinations, as well as carry out comprehensive treatment, including