The gastrointestinal (GI) tract

  The gastrointestinal (GI) tract is the body’s entry point for nutrients, including fluids and electrolytes needed to sustain life. Disorders of the GI tract are often grouped into the following categories: alteration of digestive function, absorptive function, immunologic function, and neuroendocrine function. What are the stimuli to the multiple substances that control gastric acid secretion? What risks result from having strong acidity in the stomach? What is the pathophysiology of Helicobacter pylori?