In this article we will discuss about the structure of small intestine with the help of suitable diagrams. From outside inwards, the arrangement of the layers is same, i.e., the serous coat, the muscular coat, composed of outer longitudinal and inner circular, the submucous coat the layer of muscularis mucosae consisting of outer longitudinal and inner circular layers and lastly [...]
Absorption is the process by which the end products of digestion pass through the intestinal epithelium and enter the blood stream. Attempts have been made to explain the mechanism of absorption on the basis of known physico-chemical principles. The following factors are believed to be involved in the process: i. Diffusion: This depends upon the relative concentration of the substances [...]
In this article we will discuss about the absorption of water and salts in human body. Absorption of Water: Very little water is absorbed from the stomach. Water introduced into the stomach almost immediately passes into the small intestine which is the chief seat of water absorption. The intestinal contents near the ileocecal valve contain the same proportion of water [...]