Abstract：
:The VIIIth cranial nerve projections in the hagfish, which has only one circular canal in the ear, were studied by transganglionic HRP transport. This nerve has two branches, the nervus utricularis (N. utr.) and the nervus saccularis (N. sac.), each with its own ganglion, the ganglion utriculare (G. utr.) and the ganglion sacculare (G. sac.), respectively. Although the G. sac. has uniformly small cells, the G. utr. consists of two separate cell masses, a ventral mass of large cells and a dorsal mass of small cells. The small cells were labeled in both ganglia after horseradish peroxidase (HRP) injection into the endolymphatic space. The greater part of the terminal areas of these two branches overlapped in the ventral nucleus of the area acoustico-lateralis, but the terminals of the N. sac. extended slightly further in a caudal direction. No projections to the primordial cerebellum and no retrogradely labeled cells in the brain were found. The large cells in the ventral part of the G. utr. seem to be general cutaneous neurons, and the dorsal part of the area acousticolateralis seems to receive lateral line input.
journal_name
Brain Resjournal_title
Brain researchauthors
Amemiya F,Kishida R,Goris RC,Onishi H,Kusunoki Tdoi
10.1016/0006-8993(85)91610-5subject
Has Abstractpub_date
1985-06-24 00:00:00pages
73-9issue
1eissn
0006-8993issn
1872-6240pii
0006-8993(85)91610-5journal_volume
337pub_type
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