Corpus: Pylorus
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Synonyms: Gastric porter, sphincter pylori, sphincter pylori muscle
from Greek: pyloros - gatekeeper, guardian
English:
Definition[Bearbeiten]
The pylorus is the sphincter muscle bordering the distal part of the stomach ("pars pylorica"), which is formed from the thickened ring muscles of the stomach wall. It separates the acidic gastric environment from the duodenum and regulates the passage of food from the stomach into the intestine.
Topography[Bearbeiten]
The pylorus is located on the Addisonian plane, which is therefore also known as the transpyloric plane.
Clinic[Bearbeiten]
The pylorus is clinically significant, for example, in the context of functional disorders such as pyloric stenosis (narrowing) or reflux diseases, in which intestinal contents pass back into the stomach.