| The caudal ganglion of the leech, with particular reference to homologues of segmental touch receptors. | |
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MedLine Citation:
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PMID: 712367 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The caudal ganglion of the leech, which provides sensory and motor innervation to the posterior sucker, represents the fusion of seven embryonic segmental ganglia. Although fused, each of the seven contributing ganglia ("subganglia") of the caudal ganglion can be distinguished morphologically and functionally. The roots from each subganglion carry the axons of mechanoreceptors homologous to "touch" cells found in the segmental ganglia and the subesophageal compound ganglion. The receptive fields supplied by the touch cells of the caudal ganglion are uniquely arranged and reveal the modified segmentation of the circular posterior sucker. Extensive overlap of sensory innervation occurs between adjacent segments of the sucker, beyond the overlap characteristic of the homologous cells of body segments. It thus appears that the touch receptors of the caudal ganglion are less restricted than receptors of the segmental ganglia with regard to their territories of innervation. The caudal ganglion has additional unique properties that establish it as a distinct integrative center of the leech CNS. |
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Authors:
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E Rubin |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of neurobiology Volume: 9 ISSN: 0022-3034 ISO Abbreviation: J. Neurobiol. Publication Date: 1978 Sep |
Date Detail:
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Created Date: 1979-01-15 Completed Date: 1979-01-15 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0213640 Medline TA: J Neurobiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 393-405 Citation Subset: IM; S |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Ganglia / anatomy & histology, physiology* Leeches / anatomy & histology, physiology* Mechanoreceptors / physiology* Touch / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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