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Innervation Densities of the Cochlea
Abstract
In normal cats the nerve fibres have been counted at different levels from the spiral ganglion to the outer hair cells by means of light and electron microscopy. The relative numbers were calculated per millimeter cochlear length. Thus more exact information has been obtained about the ratio of the nerve supply to the inner and outer hair cells, the innervation density and the fibre branching in different cochlear turns. The great predominance of the innervation of the inner hair cells is confirmed. Only a small proportion of all nerve fibres leads to the outer hair cells. There is an overall innervation density maximum in the upper basal turn. About 95% of the afferent cochlear neurons are associated with the inner hair cells and only about 5% with the outer hair cells. The neurons associated with the outer hair cells have entirely different structural characteristics and do not undergo retrograde degeneration.
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Cited by
Liberman, M. C., Dodds, L. W., & Pierce, S. (1990) · Journal of Comparative Neurology · doi:10.1002/cne.903010309 · Cited by 414
Tonndorf, J. (1977) · Annals of Otology, Rhinology & Laryngology · doi:10.1177/00034894770860s601 · Cited by 319
Wu, P.-Z., O'Malley, J. T., de Gruttola, V., & Liberman, M. C. (2020) · The Journal of Neuroscience · doi:10.1523/jneurosci.0937-20.2020 · Cited by 259
Robertson, D. (1984) · Hearing Research · doi:10.1016/0378-5955(84)90042-x · Cited by 214
A non-canonical pathway from cochlea to brain signals tissue-damaging noise
Flores, E. N., Duggan, A., Madathany, T., Hogan, A. K., Márquez, F. G., Kumar, G., Seal, R. P., Edwards, R. H., Liberman, M. C., & García-Añoveros, J. (2015) · Current Biology · doi:10.1016/j.cub.2015.01.009 · Cited by 161
Metadata
- Authors
- Spoendlin, H.
- Venue
- Acta Oto-Laryngologica
- Publisher
- Informa UK Limited
- Published
- 1972-01
- Volume
- 73
- Issue
- 2-6
- Pages
- 235-248
- ISSN
- 0001-6489 (ISSN-L)
- 1651-2251
- OpenAlex
- W2012649986
- Cited by
- 399
- References
- 0
- FWCI
- 13.34
- Type
- journal article
- Language
- en
- Open access
- closed
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