Scarpa's ganglion

These electric impulses are then transported through scarpa's ganglion (vestibulocochlear nerve) to the primary auditory cortex, on both hemispheres.

The vestibular nerve ganglion (also called Scarpa's ganglion) is the ganglion of the vestibular nerve.

It starts in the vestibular system, where semicircular canals get activated by head rotation and send their impulses via the vestibular nerve (cranial nerve VIII) through Scarpa's ganglion and end in the vestibular nuclei in the brainstem.

For instance, if the head is turned clockwise as seen from above, then excitatory impulses are sent from the semicircular canal on the right side via the vestibular nerve (cranial nerve VIII) through Scarpa's ganglion and end in the right vestibular nuclei in the brainstem.