Through olivocochlear fibers, it also transmits motor and modulatory information from the superior olivary complex in the brainstem to the cochlea.

The 8th cranial nerve runs between the base of the pons and medulla oblongata (the lower portion of the brainstem).

The vestibular ganglion houses the cell bodies of the bipolar neurons and extends processes to five sensory organs.

It emerges from the pontomedullary junction and exits the inner skull via the internal acoustic meatus in the temporal bone.

If BC>AC and Weber's test lateralizes to abnormal side then it is Conductive hearing loss.

If AC>BC and Weber's test lateralizes to normal side then it concludes Sensorineural hearing loss.

A battery of (1) otoscopy, to view the ear canal and tympanic membrane, (2) tympanometry, to assess the immittance of the tympanic membrane and how well it moves, (3) otoacoustic emissions, to measure the response of the outer hair cells located in the cochlea, (4) audiobooth pure-tone testing, to obtain thresholds to determine the type, severity, and pathology of the hearing loss present, and (5) speech tests, to measure the patients recognition and ability to repeat the speech heard, is all taken into consideration when diagnosing the pathology of the patient.