Pylorus

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.

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Tree Number(s): A03.556.875.875.799

MeSH Unique ID: D011708

Entry Terms:

• Pyloric Sphincter
• Pyloric Sphincters
• Sphincter, Pyloric
• Sphincters, Pyloric

See Also:

• Gastric Emptying

All MeSH Categories
Anatomy Category
Digestive System
Gastrointestinal Tract
Upper Gastrointestinal Tract
Stomach
Pylorus