What is the duodenum anatomy?
The small intestine consists of three different parts that are duodenum, jejunu and ileum. The duodenum forms the beginning of the small intestine and is attached to the stomach with a pyloric sphincter. Compared to the rest of the small intestine, the duodenum is short and wide, with a distinctive C shape. The anatomy of the duodenum reflects the fact that most of the digestion occurs. These are not different parts, but have been marked to describe where various actions occur in the duodenum. Four parts of the duodenum are the superior part, descending part, horizontal part and ascending part. Each part refers to a specific area of the C duoden. It is about 2 inches (5 cm) long, while the first 3/4 inches (2 cm) is mobile. This is unique in the anatomy of the duodenum because the rest is immobile, attached to the abdominal wall. The excellent part is the top of the C -shaped and begins at the pyloric sphincter.
The descending part, or the second part, is the longest part of the rough anatomy of the duodenum. It's a place whereE The digestive juices are from the abdominal and the liver emptied to the duodenum. In this part and horizontal or third part of the duodenum, food is mixed with digestive juices. Enzymes in the digestive juices decompose food into smaller molecules that are absorbed into the bloodstream of the ileum.
microscopic anatomy duodenum shows that it contains four layers in its walls, which are the same as the rest of the small intestine. Inside the duoden, there are four layers of mucosa, submucosa, muscularis propria and serosa. Brunner 檚 檚 glands are found in the mucosal layer of the duodenum. These glands produce mucus to lubricate the inner wall of the duodenum, as well as mineral salts to neutralize the pH of food that passed from the stomach to the duodenum.
The duodenal walls are highly folded and covered with small projections similar to a finger called Villi. These projections contain a smooth muscle that helps to move food through the duodenum, and also mix it thoroughly with digestive juices. Some digestive enzymes are made of cells foundVilli.