Duodenum: splits and transfers into the blood

By the name of this part of the intestine, you can guess that it is small. Twelve fingers ... Modern data say that its length is 25-30 centimeters. As you can see, it is not long at all. But it is isolated in an independent department of the small intestine, which also includes the skinny and ileum. Where is the duodenum and what is it doing?

Its projection on the skin is in the epigastric region. This space on the abdomen, bounded from below by a line that can be drawn along the lower edges of the ribs, and along the sides of this region are the descending arcs of the ribs.

If we talk about the function of the duodenum, then it is necessary to mention two - the chemical transformation of food and its absorption. In this department, most of the iron is absorbed, because the diseases of the mucosa of this intestine can be accompanied by manifestations of anemia.

Here the ducts from the digestive glands are opened , and therefore effective digestion becomes possible. Between the stomach and this part of the intestine is a kind of barrier to food - the doorkeeper, which regulates the transition from the stomach to the small intestine. However, sometimes food goes and in the opposite direction - with intensive vomiting out of the person go out food masses with bile, and bile mixed with food only in the duodenum.

The food that comes to the small intestine from the stomach has an extremely high acidity, so large that it can provoke ulcers. Fortunately, this does not normally happen, because in the wall of the duodenum there are Brunner's glands that secrete weakly alkaline substances, which allows neutralizing the incoming acid up to the values transferred for the intestine. What is the duodenum?

Its structure can not be described without reporting information on the ducts coming from the digestive glands. This is an interesting question, because different people can have the features of the structure of this area. In a certain area of the intestine, the pharynx of the papillae, both one and two ducts can flow. Most people have one. But not only this can be different. Still sometimes there is an additional duct from the pancreas, however, it is rather an exception than the rule.

In digestion not only large glands (liver with pancreas) are involved, but also the own gut glands. They activate the enzymes of the large glands. In the duodenum come the ducts and directly from the liver, and from the gallbladder. Sometimes, when in a bubble stones, they can get inside the intestines and injure it. Bile contributes to the breakdown of fats, and therefore in this part of the intestine begins their absorption.

Also, the duodenum is able to throw out the substances that make the gatekeeper open, it's only necessary for you to eat a new portion of food. She also plays a role in the formation of a sense of hunger. In addition, this part of the intestines, through the production of hormones, affects the liver, causing the latter to secrete more bile.

It is the duodenum that is removed from the digestion process by a surgeon, when operations are performed to treat obesity. This proves a key role in the absorption of this part of the intestine. Indeed, a person begins to receive much less calories, but becomes a kind of disabled person, so reasonable people find other ways of treatment.

In the small intestine, food is absorbed much more than in the stomach. But this is not said much, because the intestines do not feed the signals of hunger, as the stomach does. And because it begins to pay attention, only if the disease began.

This is a very unusual organ, because, being short, it has an area that a gut with a length of 500 m should have. How is this possible? The case in villi, folds and hollows, which increase the suction area.

This body has many secrets. Maybe it is you who will penetrate them?