GASTROINTESTINAL tract also called the alimentary canal or digestive tract, A large muscular tube that extends from the mouth to the anus. Where the movement of muscles and release of hormones and enzymes digest food or pertaining to, or affecting the stomach and intestines.Your digestive or gastrointestinal tract includes the espophagus, stomach, small intestine, large intestine or colon, rectum and anus. Bleeding can come from one or more of these areas. The amount of bleeding can be so small that only a gastrointestinalscopes in the lab can find it. GI bleeding can originate anywhere from the mouth to the anus and can be overt or occult. There are many possible causes which are divided into upper GI and lower GI tract.

GASTROINTESTINAL FUNCTIONAL AND MOTILITY DISORDERS refer to a disorder of functioning where the bodys normal activities in terms of the movement of the intestines, the sensitivity of the nerves of the intestines, or the way in which the brain controls some of these functions is impaired. There are no structural abnormalities that can be seen by endoscopy, x-ray, or blood tests. Thus it is distinguish by the characteristics of the symptoms and rare when needed, limited tests. GASTROINTESTINAL MOTILITY is described by the motion of the digestive system, and the transit of the contents within it. When nerves or muscles in any section of the digestive tract do not function in a strong coordinated fashion, a person develops symptoms detail to motility problems. These symptoms may range from heartburn to constipation. Other symptoms may also include abdominal distention, nausea, vomiting. Functional gastrointestinal disorders affect millions of people of all ages—men, women, and children. They are the most commonly presented gastrointestinal illnesses seen by physicians in primary care or gastroenterology. Irritable bowel syndrome IBS and dyspepsia are the most common functional GI disorders. IBS alone affects 10 percent to 15 percent or more of adults. A functional disorder does not show any evidence of an organic or physical disease, and the cause of a functional GI disorder doesn’t show up in a blood test or an x-ray. The disorders are diagnosed based on symptoms, and often require tests to rule out the likelihood of another disease. GASTROINTESTINAL DISORDERS IN CHILDREN these symptoms may range from heartburn to constipation. Other symptoms may also include abdominal distention, nausea, vomiting, and diarrhea. However, there are no structural abnormalities that can be seen by endoscopy, x-ray, or blood tests. Thus it is identified by the characteristics of the symptoms and infrequently, when needed, limited tests. Childhood functional gastrointestinal disorders include a variable combination of often age-dependent, chronic or recurrent symptoms not explained by structural or biochemical abnormalities.