Lesions in the CPA-IAC can compress the cochlear nerve
as it travels from the brainstem to the cochlea resulting in SNHL.
He said medically the absence of a cochlear and cochlear nerve
is referred to as cochlear aplasia.
3,4) Recent reviews of the histology and surgery literature have demonstrated that most schwannomas arise from the covering cells (Schwann cells) of the inferior vestibular nerve (5,6) Schwannomas that arise from the cochlear nerve
and are limited to the internal auditory canal are rare.
The authors give a backgrounder in their report saying: "Cochlear implants provide the perception of sound through the conversion of sound stimuli into electrical impulses, which are received by the cochlear nerve
and processed by the central auditory system.
Most meningitis cases were associated with an implant with a positioner, a silastic wedge inserted next to the implanted electrode in the cochlea to position the electrode closer to the cochlear nerve
endings and thus facilitate electrical signal transmission.
The coding of sound intensity over the normal 120 dB intensity range may, in part, be due to the mean rate of unit firing of cochlear nerve
fibers and the population of neurons excited.
They were located near the soft cerebral membrane, chiefly in the regions of the posterior long fasciculi, the nuclei of the abducent vestibular and trigeminus nerves, under the ependyma, in the area of the cochlear nerve
nuclei, the Gover's fasciculi, and in the base of the cerebellum.
University press officer Peter Dunn said: "The aim is to gauge the amount of information that is coded by the cochlear nerve
in response to electrical stimulation from a cochlear implant and to find ways to increase the information transfer.
What is particularly reprehensible in this case is that Advance Bionics, which has been entrusted with assisting young children and later-deafened or prelingually deaf adults, may have violated that trust by allowing the use of defective devices which may cause irreparable harm to the cochlear nerve
and prevent later successful use of a cochlear implant," said Teresa Curtin, an attorney with Weitz & Luxenberg P.