Intestine Smooth, Tools Digestion In Humans

Located in the small intestine between the stomach and colon. This is a long intestinal tract with muscular walls. The walls of the small intestine consists of three layers, ie tunica mucosa, tunica muscularis, and tunica serosa. Tunica muscularis is causing geraka bagia small intestine.


Small intestine is divided into three parts, namely:

a. Deudenum (duodenum). Deudenum sekiar length 25-30 cm, horseshoe-shaped curve to the left. On this arch there is the pancreas that produce amylase to digest carbohydrate that serves a disaccharide. Here occurs a chemical digestion. Deudenum estuary channel is derived from the liver, the ducts keleodokus and originating from the pancreas, namely pancreatic.

b. Jejunum (empty gut). Length about 7 meters. In the jejunum, the food is still experiencing a chemical digestion by enzymes that dihailka by dning intestine, so that it becomes very soft porridge nd thin. It is the venue for the final digestion of food before the nutrients are absorbed in the ileum.

c. Ileum (intestine convolution / intestinal absorption). Ileum is the sari-sari terjaina absorption of food with a length of about 1 meter. This is where the sari-sari food is absorbed by the digestive process-tuft tuft intestine (villi).


Tuft small intestine wall enclosed by the cell tiang.kira terdpat about 500 cells in each tuft pile. Each cell contains about 1,000 microvilli. It also expands the surface of the villi of the intestinal wall so that the absorption of food nutrients Leih menajdi effective. Enzymes in the microvilli would destroy parikel food into small enough to be absorbed.
In every tuft of blood vessels are smooth and lymph channels (Kil vessels) that absorb nutrients from the surface flakes. Veins take up glucose, amino acids and minerals, while the fatty acids and glycerol enter the vessel Kil.

Small intestine wall intestine produce sap that contains several enzymes, other anatar enterokinase, erepsin, lactase, intertase, and maltase. Enterokinase functions to alter enzyme produced by the pancreas becomes tripsinogen trypsin. Erepsin serves to improve the digestion of proteins by changing pelipeptida into various amino acids. Lactase, intertase, and maltase are classified as functioning in the development of complete starch digestion disakarase (ailum) by changing the guladisakarida into sugar monosaccharide.