| "Naked" spinal cord on a non-segmented baton-like bony structure in the tail of the electric fish Eigenmannia virescens (gymnotoidei). | |
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MedLine Citation:
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PMID: 630596 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The caudal spinal cord of Eigenmannia virescens is not enclosed in a neural canal of the vertebral column. In fact, a segmented vertebral column with neural and ventral arches is lacking and replaced by a non-segmented baton-like bony structure on which the free spinal cord is located. The baton cosists of calcified bone tissue with bone cells. Individual differences exist as far as the length of the rod is concerned. The "electromotor neurons" of this caudal part of the spinal cord are histochemically acetylcholinesterase-positive. The electrocytes which surround this part of the spinal cord show strong enzymatic activity on the posterior innervated face. However, there is also activity on the non-innervated lateral and anterior faces. |
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Authors:
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F Kirschbaum; F Neunier; S Tsuji |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Cell and tissue research Volume: 187 ISSN: 0302-766X ISO Abbreviation: Cell Tissue Res. Publication Date: 1978 Feb |
Date Detail:
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Created Date: 1978-05-20 Completed Date: 1978-05-20 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0417625 Medline TA: Cell Tissue Res Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 263-9 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acetylcholinesterase
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analysis Animals Electric Organ / cytology Fishes / anatomy & histology* Neurons / analysis Spinal Cord / analysis, anatomy & histology* Spine / anatomy & histology Tail / anatomy & histology* |
| Chemical | |
Reg. No./Substance:
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EC 3.1.1.7/Acetylcholinesterase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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