<prompt> Killians dehiscence is seen in -OropharynxNasopharynxCricopharynxVocal cords  <response>: Between these two parts of inferior constrictor exists a potential gap called Killians dehiscence.It is also called the gateway to tear as perforation can occur at this site during esophagoscopy.It is also the site for herniation of pharyngeal mucosa in case of the pharyngeal pouch. 