Origin of Sympathetic and Sensory Innervation of the Endolymphatic Sac
作者:
Lena Birgersson,
Ulla Friberg,
Helge Rask-Andersen,
Claes Erwall,
Bertil Widenfalk,
期刊:
ORL
(Karger Available online 1992)
卷期:
Volume 54,
issue 4
页码: 188-190
ISSN:0301-1569
年代: 1992
DOI:10.1159/000276296
出版商: S. Karger AG
关键词: Endolymphatic sac innervation;Horseradish peroxidase;Sympathetic ganglion;Sensory ganglion
数据来源: Karger
摘要:
Lectin-conjugated horseradish peroxidase (WGA-HRP) was used as a retrograde axonal tracer to determine endolymphatic sac (ES) innervation and the nature of such a nervous supply. WGA-HRP placed into the ES of the guinea pig resulted in labelling of neurons in the ipsilateral sympathetic superior cervical ganglion and the sensory trigeminal ganglion. The number of labelled neurons in the cervical superior ganglion varied according to the survival time with peak labelling occurring after 48 h. Sparse labelling of the sensory trigeminal ganglion was also present after 48 h. The results indicate that sympathetic neurons from the superior cervical ganglion and to a certain extent trigeminal somatosensory neurons innervate the ES or perisaccular tissue. If these findings reflect the existence of a sympathetic functional reflex unit remains to be elucidated.
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