Segmented 3D temporal bone anatomy. a) Cochleo-vestibular apparatus with medial to lateral orientation and direct view into the internal auditory canal. b) Sagittal view of external meatus. Note the ossicular network (brown), vertical segment of the facial nerve (yellow), and cochleo-vestibular apparatus (transparent grey). c) View perpendicular to the internal acoustic meatus with appreciation of facial, cochlear and both inferior and superior vestibular nerves (yellow).