Search results
Results from the WOW.Com Content Network
The human gastrointestinal tract consists of the esophagus, stomach, and intestines, and is divided into the upper and lower gastrointestinal tracts. [3] The GI tract includes all structures between the mouth and the anus , [ 4 ] forming a continuous passageway that includes the main organs of digestion, namely, the stomach , small intestine ...
The lower gastrointestinal tract (GI), includes the small intestine and all of the large intestine. [29] The intestine is also called the bowel or the gut. The lower GI starts at the pyloric sphincter of the stomach and finishes at the anus. The small intestine is subdivided into the duodenum, the jejunum and the ileum. The cecum marks the ...
The digestive system functions to move material through the GI tract via peristalsis, break down that material via digestion, absorb nutrients for use throughout the body, and remove waste from the body via defecation. [3] Physicians who specialize in the medical specialty of gastroenterology are called gastroenterologists or sometimes GI doctors.
A horizontal line across from the cardiac notch gives the dome-shaped region called the fundus. [8] The cardia is a very small region of the stomach that surrounds the esophageal opening. [8] The fundus (from Latin 'bottom') is formed in the upper curved part. The body or corpus is the main, central region of the stomach.
Another disorder is called peritonitis which usually accompanies inflammatory processes elsewhere. It can be caused by damage to an organ, or from a contusion to the abdominal wall from the outside or by surgery. It may be brought in by the bloodstream or the lymphatic system. The most common origin is the gastrointestinal tract.
During breathing, the diaphragm contracts and flattens, displacing the viscera and producing an outward movement of the upper abdominal wall (epigastric region). It is a convergence of the diaphragm and the abdominals, so that "when both sets of muscles (diaphragm and abdominals) tense, the epigastrium pushes forward". [ 1 ]
Gastrointestinal physiology is the branch of human physiology that addresses the physical function of the gastrointestinal (GI) tract.The function of the GI tract is to process ingested food by mechanical and chemical means, extract nutrients and excrete waste products.
Upper gastrointestinal surgery, often referred to as upper GI surgery, refers to a practice of surgery that focuses on the upper parts of the gastrointestinal tract.There are many operations relevant to the upper gastrointestinal tract that are best done only by those who keep constant practice, owing to their complexity.