Anatomy Constrictions in esophagus are seen at all the levels except: A At the begining of esophagus B At the site of crossing of esophagus by aoic arch C Where esophagus pierces the diaphragm D At the point of crossing of thoracic duct 💡 Explanation Constrictions in esophagus are seen at all the levels except: ✓ Correct Answer: D. At the point of crossing of thoracic duct