<prompt> Bills bar divides:Facial nerve and cochlear nerveFacial nerve and superior vestibular cochlear nerveFacial and inferior vestibule cochlear nerveSuperior and inferior vestibule cochlear nerve  <response>: Ans. b Facial nerve and superior vestibular cochlear nerveRef: Dhingras ENT 6th ed.l 90-91 Bills bar divides the superior compartment of the internal acoustic meatus into an anterior and posterior compartment. Anterior to Bills bar, are the facial nerve in the anterior superior quadrant and nervus intermedius, and posterior to it is the superior division of the vestibular nerve in the posterior superior quadrant. 