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Rostrocaudal location of sympathetic preganglionic neurones within the third thoracic segment of the cat spinal cord investigated by the retrograde transport of horseradish peroxidase and by recording of antidromic field potentials.

Authors
Type
Published Article
Journal
Neuroscience Letters
0304-3940
Publisher
Elsevier
Publication Date
Volume
77
Issue
1
Pages
31–36
Identifiers
PMID: 2439954
Source
Medline
License
Unknown

Abstract

The rostrocaudal location of sympathetic preganglionic neurones (SPNs) in the intermediolateral cell column of the third thoracic segment was studied in the cat by the retrograde transport of horseradish peroxidase and by recording of antidromic field potentials in the spinal cord in response to stimulation of white ramus T3. By both methods, the position of the rostral and caudal border of SPNs was determined in relation to the entry of segmental dorsal roots. It was found that SPN's are confined in the spinal cord to the length of one segment (9494 +/- 823 micron), but are shifted rostrally by about 3 mm with respect to the point of entry of the dorsal roots of segment T3.

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