Hearing - Neural Pathway: Difference between revisions
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# auditory nerve (cochlear nerve, acoustic nerve) part of the vestibulocochlear nerve (8th cranial nerve, CN VIII) | # auditory nerve (cochlear nerve, acoustic nerve) part of the vestibulocochlear nerve (8th cranial nerve, {{CN VIII}}) | ||
# cochlear nuclei (dorsal cochlear nucleus, ventral cochlear nucleus) | # cochlear nuclei (dorsal cochlear nucleus, ventral cochlear nucleus) | ||
# superior olivary complex (SOC, superior olive) | # superior olivary complex (SOC, superior olive) |
Latest revision as of 21:14, 13 May 2018
Embryology - 26 Apr 2024 Expand to Translate |
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Introduction
This diagram gives an overview of the central neural pathway from the cochlea through the brainstem nuclei to the auditory cortex. Note that this neural pathway can be analysed postnatally by Automated Auditory Brainstem Response.
- auditory nerve (cochlear nerve, acoustic nerve) part of the vestibulocochlear nerve (8th cranial nerve, CN VIII)
- cochlear nuclei (dorsal cochlear nucleus, ventral cochlear nucleus)
- superior olivary complex (SOC, superior olive)
- lateral lemniscus
- inferior colliculus
- medial geniculate nucleus
- auditory cortex
Some Recent Findings
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More recent papers |
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This table allows an automated computer search of the external PubMed database using the listed "Search term" text link.
More? References | Discussion Page | Journal Searches | 2019 References | 2020 References Search term: Hearing Neural Pathway Development <pubmed limit=5>Hearing Neural Pathway Development</pubmed> |
Mass of nerve cells is divided into three groups. | ||
A Geniculate ganglion (taste group, motor and sympathetic) | B Spiral ganglion (cochlear group) | C Vestibular ganglion (balance group) |
Vestibulocochlear Nerve
Adult cochlea nerve glia diagram[5] |
- forms beside otocyst
- from wall of otocyst and neural crest cells
- bipolar neurons
Vestibular Neurons
- outer end of internal acoustic meatus
- innervate hair cells in membranous labyrinth
- axons project to brain stem and synapse in vestibular nucleus
Cochlear Neurons
- cell bodies lie in modiolus
- central pillar of cochlear
- innervate hair cells of spiral organ
- axons project to cochlear nucleus
Cochlea Glial
Cochlea glial lineage[5] | Adult cochlea nerve glia cartoon[5] |
Auditory Sound Localization Circuits in the Mammalian Brainstem
Schematic drawing of primary auditory sound localization circuits in the mammalian brainstem. For clarity, only the LSO or MSO are shown on each side.[6]
Except for the auditory nerve, excitatory connections are shown in green and inhibitory connections are shown in red.
- AN - auditory nerve
- CN - cochlear nucleus
- HF - high frequency
- LF - low frequency
Calyx of Held
A specialised mammalian auditory brainstem synaptic structure.[7] Ventral cochlear nucleus (VCN) globular bushy cells project to the contralateral, but not ipsilateral, medial nucleus of the trapezoid body (MNTB), where they form this specialised structure, named by Hans Held (1893).[8] The VCN-MNTB pathway is required for calculating the interaural intensity and time differences.
References
- ↑ Kim BJ, Kim J, Park IY, Jung JY, Suh MW & Oh SH. (2018). Effects of transient auditory deprivation during critical periods on the development of auditory temporal processing. Int. J. Pediatr. Otorhinolaryngol. , 104, 66-71. PMID: 29287884 DOI.
- ↑ Long P, Wan G, Roberts MT & Corfas G. (2018). Myelin development, plasticity, and pathology in the auditory system. Dev Neurobiol , 78, 80-92. PMID: 28925106 DOI.
- ↑ Clause A, Kim G, Sonntag M, Weisz CJ, Vetter DE, Rűbsamen R & Kandler K. (2014). The precise temporal pattern of prehearing spontaneous activity is necessary for tonotopic map refinement. Neuron , 82, 822-35. PMID: 24853941 DOI.
- ↑ Roy PN, Mehra KS & Deshpande PJ. (1975). Cataract surgery performed before 800 B.C. Br J Ophthalmol , 59, 171. PMID: 1093567
- ↑ 5.0 5.1 5.2 Locher H, de Groot JC, van Iperen L, Huisman MA, Frijns JH & Chuva de Sousa Lopes SM. (2014). Distribution and development of peripheral glial cells in the human fetal cochlea. PLoS ONE , 9, e88066. PMID: 24498246 DOI.
- ↑ Kandler K, Clause A & Noh J. (2009). Tonotopic reorganization of developing auditory brainstem circuits. Nat. Neurosci. , 12, 711-7. PMID: 19471270 DOI.
- ↑ Nakamura PA & Cramer KS. (2011). Formation and maturation of the calyx of Held. Hear. Res. , 276, 70-8. PMID: 21093567 DOI.
- ↑ Held H. Die zentrale Gehörleitung. (The Central Auditory Pathway) Arch Anat Physiol Anat Abtheil. 1893;17:201–248.
Reviews
Kandler K, Clause A & Noh J. (2009). Tonotopic reorganization of developing auditory brainstem circuits. Nat. Neurosci. , 12, 711-7. PMID: 19471270 DOI.
Articles
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Search Pubmed: Hearing Neural Pathway
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Cite this page: Hill, M.A. (2024, April 26) Embryology Hearing - Neural Pathway. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Hearing_-_Neural_Pathway
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G