#pylorus__pyloru  a small circular opening between the stomach and the duodenum
  supertype:  orifice__opening__porta  an aperture or hole opening into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart"
  part:  pyloric_sphincter__pyloricsphincter__pyloric_valve__pyloricvalve__musculus_sphincter_pylori  the sphincter muscle of the pylorus that separates the stomach from the duodenum

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