Synonyms: non-striated muscle of gullet smooth muscle of oesophagus oesophagus involuntary muscle gullet involuntary muscle smooth muscle tissue of esophagus involuntary muscle of oesophagus involuntary muscle of esophagus gullet smooth muscle tissue gullet smooth muscle smooth muscle of gullet non-striated muscle of esophagus smooth muscle tissue of oesophagus gullet non-striated muscle oesophagus smooth muscle tissue esophagus smooth muscle tissue smooth muscle tissue of gullet esophagus non-striated muscle involuntary muscle of gullet oesophagus non-striated muscle esophagus smooth muscle non-striated muscle of oesophagus esophagus involuntary muscle esophageal smooth muscle