Definition : The region of the stomach at the junction with the duodenum. It is marked by the thickening
of circular muscle layers forming the pyloric sphincter to control the opening and
closure of the lumen. [MeSH];
The region of the stomach at the junction with the duodenum. It is marked by the thickening
of circular muscle layers forming the pyloric sphincter to control the opening and
closure of the lumen. [MeSH]