Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-27T00:23:23.376Z Has data issue: false hasContentIssue false
  • English
  • Français

The distribution of neuroglia and schwann cells in the 8th nerve of man

Published online by Cambridge University Press:  29 June 2007

M. W. M. Bridger  and
J. Farkashidy
M. W. M. Bridger
Affiliation:
Temporal Bone Laboratory, The Department of Otolaryngology, University of Toronto. Adderss for reprints: Department of Otolaryngology, The Middlesex Hospital, Mortimer Street, LondonWIN8AA.
J. Farkashidy
Affiliation:
Temporal Bone Laboratory, The Department of Otolaryngology, University of Toronto. Adderss for reprints: Department of Otolaryngology, The Middlesex Hospital, Mortimer Street, LondonWIN8AA.
Get access Rights & Permissions [Opens in a new window]

Abstract

The 8th cranial nerve has been dissected from 23 adult temporal bones at autopsy and studied histologically. It was found that neuroglial tissue, continuous with that in the brain stem, supported 8th nerve axons to just beyond the mid-point of the nerve. Lateral to this, axons are supported by Schwann cells and neurilemmal sheaths with a short [junctional zone] intervening. The point at which the transition occurred, from neuroglial to Schwann cell portions, was medial to the porus in 56 per cent of cases, level with the porus in 18 per cent, and within the internal auditory canal in 26 per cent. The relevance of these findings to some aspects of 8th nerve pathology and surgery is discussed.

Type
Research Article
Information
The Journal of Laryngology & Otology , Volume 94 , Issue 12 , December 1980 , pp. 1353 - 1362
Copyright
Copyright © JLO (1984) Limited 1980

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Courville, C. B. (1932) The nervus acousticus. Laryngoscope, 42, 415–431.CrossRefGoogle Scholar
Fisch, U. (1974) Vestibular and cochlear neurectomy. Transactions of the American Academy of Opththalmology and Otolaryngology, 78, 252–255.Google ScholarPubMed
Glasscock, M. E. (1973) Vestibular nerve section. Archives of Otolaryngology, 99, 112–114.CrossRefGoogle Scholar
Henschen, F. (1915) Zur histologie und pathogenese der kleinhirnbrückenwinkeltumoren. Archiv fur Psychiatrie und Nervenkrankheiten, 56, 21–122.CrossRefGoogle Scholar
King, T. T., Gibson, W. P. R., and Morrison, A. W. (1976) British Journal of Hospital Medicine, 09, 259–272.Google Scholar
McKenzie, K. G. (1936) Intracranial division of the auditory nerve for Menière's disease. The Canadian Medical Association Journal, 34, 369–381.Google ScholarPubMed
Nager, G. T. (1969) Acoustic neurinomas. Archives of Otolaryngology, 89, 252–279.CrossRefGoogle ScholarPubMed
Portmann, M., Sterkers, J. M., Charachon, R., and Chouard, C. H. (1975) The Internal Auditory Meatus. Churchill Livingstone, London, p. 194.Google Scholar
Skinner, H. A. (1929) The origin of acoustic nerve tumours. The British Journal of Surgery, 16, 440–463.CrossRefGoogle Scholar
Skinner, H. A. (1931) Some histological features of the cranial nerves. Archives of Neurology and Psychiatry, 25, 356–372.CrossRefGoogle Scholar
Tarlov, I. M. (1937) Structure of the nerve root. Archives of Neurology and Psychiatry, 37, 1338–1355.CrossRefGoogle Scholar
Virchow, R. (1863) Cellular Pathology. J. B. Lippincott and Co., Philadelphia, pp. 315–320.Google Scholar