#cardiac_sphincter__cardiacsphincter  the valve between the distal end of the esophagus and the stomach; the physiological sphincter at the esophagogastric junction
  supertype:  physiological_sphincter__physiologicalsphincter  a sphincter that is not recognizable at autopsy because its resting arrangement cannot be distinguished from adjacent tissue
  part of:  esophagus__esophagu__oesophagus__gorge__gullet  the passage between the pharynx and the stomach
     part of:  alimentary_canal__alimentary_tract__digestive_tube__digestivetube__digestivetract__gastrointestinal_tract__GI_tract  tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination
        part of:  digestive_system__digestivesystem__gastrointestinal_system__systema_alimentarium__systemaalimentarium__systema_digestorium__systemadigestorium  the system that makes food absorbable into the body
           part of:  body__organic_structure__organicstructure__physical_structure  the entire physical structure of an organism (especially an animal or human being); "he felt as if his whole body were on fire"

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