Small intestine - structure, functions , possible disease


1. Structure and function of the small intestine

2. rupture of small intestine

3. Diseases of the small intestine

small intestine (TC) is the mostlong gastrointestinal tract that lies between the stomach and cecum.Food for the mass of the intestine is approximately four hours.The main functions of the small intestine are considered chemical processing chyme (bolus) and the absorption of nutrients.

Structure and function of the small intestine

The above intestine is long (from two to five meters) of the hollow tube that starts from the stomach and ends at the ileocecal angle.Anatomists TC is divided into three parts:

  • duodenum;
  • jejunum;
  • ileum.

small intestine performs a number of functions, the main ones being:

  • digestive function.According to the feedback doctors, including special digestion in the small intestine is the process of digestion and absorption of nutrients.With this feature, the large intestine fall exclusively non-digestible and non-digestible food.
    Digestion in the small intestine takes about four hours.
  • secretory function.This function is to develop mucosal intestinal juice TC layer, which comprises incorporating enzymes such as lipase, alkaline phosphatase, peptidase, and cathepsins disaccharidases.These enzymes decompose the nutrients contained in the chyme, into simpler.
  • endocrine function.The walls of the TC have special cells that produce peptide hormones.
  • motor function.The annular and longitudinal muscles provoke wavelike contractions TC wall bolus is pushed forward.

rupture of small intestine

When comparing TC with all other organs of the abdominal cavity, it is often exposed to traumatic injuries.This is a considerable length and insecurity of the bowel area.

most common mechanism of traumatic injury TC is strong enough or a direct blow to the stomach, which leads to pressing of bowel loops to the spine or pelvis, as well as damage to their walls.

rupture of the small intestine accompanied by a state of shock and significant internal bleeding.

Judging by the reviews of medical specialists, the only way to treat intestinal rupture is surgery, which is performed on an emergency basis.During the operation performed hemostasis (cessation of bleeding), eliminated a source of intestinal contents into the abdominal cavity of receipt, restored normal intestinal permeability, and also carried out a thorough reorganization of the peritoneum.The sooner after injury TC to perform an operation, the higher will be the interest on the recovery of the patient.

Diseases of the small intestine

Almost all small bowel diseases have similar symptoms and appear flatulence, abdominal pain, diarrhea and rumbling.At the time of a small bowel disease in patients stool copious, frequent, with a lot of mucus, and the remnants of undigested food.As for the blood, it is in such ailments in the stool is very rare.

most common disease of the small intestine is considered enteritis (inflammation) that is as acute and chronic.Called acute enteritis usually pathogenic microflora.With proper treatment in a few days from TK inflammation is not a trace remains.Chronic enteritis, in addition to digestive symptoms, characterized by general weakness, weight loss and anemia.Sometimes people with chronic enteritis observed perleches, glossitis, stomatitis, night blindness, corneal dryness and osteoporosis.

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