Tegmen tympaniTensor tympani musclePharyngotympanic tubeLesser petrosal nerveBranch from internalcarotid plexusSympathetic plexusInternal carotid arteryChorda tympani nerveTympanic branch of the glossopharyngeal nerve [IX]Internal jugular veinPromontoryRound windowFacial nerve [VII]Chorda tympani nervePyramidal eminenceAditus tomastoid antrumProminence of facial canalProminence of lateral semicircular canalOval window