ABSTRACT
Diseases which affect gastric motility and emptying are predominantly diseases of the gastrointestinal tract itself, disorders involving smooth muscle and extraintestinal diseases. Some diseases only affect one of the phases of gastric emptying. Generally duodenal ulcer produces accelerated emptying, while gastric ulcer reduces antral motility, producing normal emptying of liquids but delayed emptying of solids50. Emptying of a solid meal is slowed in patients with pernicious anaemia51 and atrophic gastritis52, but in achlorhydric patients liquids empty rapidly53.
