 Once he was properly anesthetized, the endoscope was placed in the patient's mouth that was brought down to the cricopharyngeus muscle into the esophagus and from the esophagus to his stomach. 
Once he was properly anesthetized , the endoscope was placed in the patient 's mouth that was brought down to the cricopharyngeus muscle into the esophagus and from the esophagus to his stomach .