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Spiral ganglion information


Spiral ganglion
Transverse section of the cochlear duct of a fetal cat. (Ganglion spirale is labeled at top, second from left.)
Part of the cochlear division of the acoustic nerve, highly magnified.
Details
Identifiers
Latinganglion spirale
MeSHD013136
TA98A15.3.03.125
TA26319
THH3.11.09.3.04068
FMA53445
Anatomical terminology
[edit on Wikidata]

The spiral (cochlear) ganglion is a group of neuron cell bodies in the modiolus, the conical central axis of the cochlea. These bipolar neurons innervate the hair cells of the organ of Corti. They project their axons to the ventral and dorsal cochlear nuclei as the cochlear nerve, a branch of the vestibulocochlear nerve (CN VIII).

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Spiral ganglion

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The spiral (cochlear) ganglion is a group of neuron cell bodies in the modiolus, the conical central axis of the cochlea. These bipolar neurons innervate...

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Optogenetics

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order to lower defibrillation energy. Optogenetic stimulation of the spiral ganglion in deaf mice restored auditory activity. Optogenetic application onto...

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Ganglion cell

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neurophysiology, a ganglion cell is a cell found in a ganglion (a cluster of neurons in the peripheral nervous system). Examples of ganglion cells include:...

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Cranial nerve ganglia

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ciliary ganglion pterygopalatine ganglion otic ganglion submandibular ganglion trigeminal ganglion (CN V) geniculate ganglion (CN VII) spiral ganglion (CN...

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Vestibular ganglion

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synapsed at the spiral ganglion) to proceed towards the CNS as a single unified vestibulocochlear nerve (cranial nerve VIII). The ganglion contains the cell...

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Cochlear nerve

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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...

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Cochlea

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signals via neurotransmitter to the primary auditory neurons of the spiral ganglion. The hair cells in the organ of Corti are tuned to certain sound frequencies...

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Cochlear hydrops

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and/or a feeling of fullness in the affected ear(s). A study looking at spiral ganglion cell counts compared to hair cell counts in the inner ear of patients...

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Basilar membrane

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reduced probability of spiral ganglion cell spiking. Diagrammatic longitudinal section of the cochlea. Floor of cochlear duct. Spiral limbus and basilar membrane...

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Inner ear

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contains the spiral ganglion. Specialized inner ear cell include: hair cells, pillar cells, Boettcher's cells, Claudius' cells, spiral ganglion neurons, and...

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Pseudounipolar neuron

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vestibulocochlear nerve has two ganglia associated with it (spiral ganglion and vestibular ganglion), both contain bipolar neurons, not pseudounipolar. The...

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Bipolar neuron

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mature. Common examples are the retina bipolar cell, the spiral ganglion and vestibular ganglion of the vestibulocochlear nerve (cranial nerve VIII), the...

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Cochlear nucleus

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according to their peripheral innervation of the cochlea. Axons from the spiral ganglion cells of the lower frequencies innervate the ventrolateral portions...

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Outline of human anatomy

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Utriculosaccular duct Endolymphatic duct Cochlear labyrinth Cochlear duct Spiral organ Spiral ganglion Vessels of inner ear Gustatory organ Taste bud Integumentary...

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Electrocochleography

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synapse to primary auditory neurons of the spiral ganglion. Upon reaching receptors on the postsynaptic spiral ganglion neurons, the neurotransmitters induce...

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Ototoxic medication

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agent was also found to be associated with the survival of cochlear spiral ganglion neurones after hearing loss or deafness. Audiological management can...

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Presbycusis

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and function. Neural: characterised by degeneration of cells of the spiral ganglion. Strial/metabolic: characterised by atrophy of stria vascularis in...

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Cinchonism

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Quinine on the Excitability and Voltage-Dependent Currents of Isolated Spiral Ganglion Neurons in Culture". Journal of Neurophysiology. 79 (5): 2503–12. doi:10...

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Acoustic trauma

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cause glutamate excitotoxicity of first-order afferent neurons of the spiral ganglion (cochlear synaptopathy). This can occur when an impact or impulse sound...

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Auditory neuropathy

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be several dysfunctions of the inner hair cells of the cochlea or spiral ganglion neuron levels. Hearing loss with AN can range from normal hearing sensitivity...

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Ototoxicity

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cochlea, causing the death of outer hair cells, as well as damage to the spiral ganglion neurons and cells of the stria vascularis. Long-term retention of cisplatin...

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Ear

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depolarise, and creates an action potential that is transmitted along the spiral ganglion, which sends information through the auditory portion of the vestibulocochlear...

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Sound localization

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chemical signal by hair cells in the organ of Corti, which synapse onto spiral ganglion fibers that travel through the cochlear nerve into the brain. In vertebrates...

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Action potential

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(2021). "Analog transmission of action potential fine structure in spiral ganglion axons". Journal of Neurophysiology. 126 (3): 888–905. doi:10.1152/jn...

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Development of the nervous system

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generate bursts of activity which spreads across the inner hair cells and spiral ganglion neurons which relay auditory information to the brain. ATP release...

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Auditory system

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over 40-fold. The outer hair cells (OHC) are minimally innervated by spiral ganglion in slow (unmyelinated) reciprocal communicative bundles (30+ hairs...

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