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English: A selection of different Cochlear Nucleus sound processors, from the N5 to the N8 device (left to right). The N8 also has coil and cable attached.
A cochlear implant (CI) is a surgically implanted neuroprosthesis that provides a person who has moderate-to-profound sensorineural hearing loss with sound perception. With the help of therapy, cochlear implants may allow for improved speech understanding in both quiet and noisy environments.
The ventral cochlear nucleus is unlayered whereas the dorsal cochlear nucleus is layered. Auditory nerve fibers, fibers that travel through the auditory nerve (also known as the cochlear nerve or eighth cranial nerve) carry information from the inner ear, the cochlea, on the same side of the head, to the nerve root in the ventral cochlear ...
A totally implantable cochlear implant (TICI) is a new type of cochlear implant and is currently in development.Unlike a conventional cochlear implant, which has both an internal component (the implant) and an external component (the audio processor), all the components of the TICI - including the microphone and battery - are implanted under the skin. [1]
Cochlear, the adjective form of cochlea, may refer to: Cochlear implant, a sensory aid for the deaf; Cochlear nuclei, the ventral cochlear nucleus and the dorsal (or lateral) cochlear nucleus; Vestibular-cochlear or Vestibulocochlear nerve, the eighth cranial nerve; Cochlear nerve, a division of the eighth cranial nerve
The cochlear amplifier is a positive feedback mechanism within the cochlea that provides acute sensitivity in the mammalian auditory system. [1] The main component of the cochlear amplifier is the outer hair cell (OHC) which increases the amplitude and frequency selectivity of sound vibrations using electromechanical feedback.
The cell bodies of the cochlear nerve lie within the cochlea and collectively form the spiral ganglion, named for the spiral shape it shares with the cochlea. These central axons exit the cochlea at its base and form a nerve trunk , which, in humans, is approximately one inch long.
The spiral ligament is a coiled thickening in the fibrous lining of the cochlear wall. It attaches the membranous cochlear duct to the bony spiral canal. The cochlea is a portion of the inner ear that looks like a snail shell (cochlea is Greek for snail). [5] The cochlea receives sound in the form of vibrations, which cause the stereocilia to move.