| The projection of the medial and posterior articular nerves of the cat's knee to the spinal cord. | |
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MedLine Citation:
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PMID: 2464629 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We studied the spinal projections of the medial and posterior articular nerves (MAN and PAN) of the knee joint in the cat with the aid of the transganglionic transport of horseradish peroxidase. The afferent fibers of the MAN entered the spinal cord via the lumbar dorsal roots L5 and L6 and those of the PAN entered via the dorsal roots L6 and L7. Within the dorsal root ganglia, most labeled neurons had small to medium diameters. A relatively higher number of medium-size cell bodies were labeled from the PAN than from the MAN. In the spinal cord labeled MAN afferent fibers and terminations were most dense in the L5 and L6 segments, and those of the PAN were most dense in L6 and L7, that is, in the respective segments of entry. Labeled afferent fibers from both nerves projected rostrally at least as far as L1 and caudally as far as S2. Labeled fibers were found in Lissauer's tract as well as in the dorsal column immediately adjacent to the dorsal horn. In the spinal gray matter, both nerves had two main projection fields, one in the cap of the dorsal horn in lamina I, the other in the deep dorsal horn in laminae V-VI and the dorsal part of lamina VII. Both nerves, but particularly the PAN, projected to the medial portion of Clarke's column. No projection was found to laminae II, III, and IV of the dorsal horn or to the ventral horn. Since these findings parallel observations on hindlimb muscle afferent fibers, the present data support the existence of a common pattern for the central distribution of deep somatic afferent fibers. |
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Authors:
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A D Craig; B Heppelmann; H G Schaible |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of comparative neurology Volume: 276 ISSN: 0021-9967 ISO Abbreviation: J. Comp. Neurol. Publication Date: 1988 Oct |
Date Detail:
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Created Date: 1989-03-21 Completed Date: 1989-03-21 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0406041 Medline TA: J Comp Neurol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 279-88 Citation Subset: IM |
Affiliation:
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Division of Neurobiology, Barrow Neurological Institute, Phoenix, Arizona 85013. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Afferent Pathways
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anatomy & histology Animals Cats Female Ganglia, Spinal / anatomy & histology*, cytology Horseradish Peroxidase / diagnostic use Knee / innervation* Male Neurons, Afferent / cytology* Spinal Cord / anatomy & histology*, cytology Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate Wheat Germ Agglutinins / diagnostic use |
| Chemical | |
Reg. No./Substance:
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0/Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; 0/Wheat Germ Agglutinins; EC 1.11.1.-/Horseradish Peroxidase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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