The vestibular nerve transmits afferent or sensory information regarding movement and position of the head from the vestibular organs, which include semicircular ducts, utricle, and saccule. Like the cochlear apparatus, each of these vestibular organs is located within a membranous (ductal) portion of the vestibular apparatus, which is surrounded by a bony (canal) portion (eFig. 9.83). The cell bodies for these sensory receptors are located in the vestibular (Scarpa’s) ganglion within the internal acoustic meatus (eFig. 9.83). The vestibular nerve then passes through the internal acoustic meatus and subarachnoid space to enter the pontomedullary junction at the cerebellopontine angle.