Cochlear innervation in the Guinea pig: II. The spiral tunnel bundle

Ch G. Wright, R. E. Preston

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The organization of nerve fibers in the spiral tunnel bundle (STB) of the guinea pig organ of Corti has been studied by light and electron microscopy. In the basal turn STB fibers were found to run toward the base or apex in about equal numbers while in the upper turns they ran predominantly in an apical direction. Long spiral fascicles of 100 microns or more in length were abundant in the third and fourth turns, but were rarely seen in the lower turns. No synaptic contacts between tunnel bundle fibers could be found and no afferent nerve fibers were seen in the bundle. Furthermore, interruption of the efferent nerve supply resulted in complete degeneration of the STB. The tunnel bundle does not, therefore, appear to be a site of synaptic interaction between afferent and efferent neural elements.

Original languageEnglish (US)
Pages (from-to)335-342
Number of pages8
JournalActa Oto-Laryngologica
Volume80
Issue number1-6
DOIs
StatePublished - 1975

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Cochlea
Nerve Fibers
Guinea Pigs
Organ of Corti
Electron Microscopy
Light
Direction compound

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Cochlear innervation in the Guinea pig : II. The spiral tunnel bundle. / Wright, Ch G.; Preston, R. E.

In: Acta Oto-Laryngologica, Vol. 80, No. 1-6, 1975, p. 335-342.

Research output: Contribution to journalArticle

Wright, Ch G. ; Preston, R. E. / Cochlear innervation in the Guinea pig : II. The spiral tunnel bundle. In: Acta Oto-Laryngologica. 1975 ; Vol. 80, No. 1-6. pp. 335-342.
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