Separate populations of primary sensory neurons project to the splanchnic nerve and thoracic spinal nerve rami of the rat. A fluorescent double labelling study.
Using fluorescent double labelling technique with one tracer applied to the greater splanchnic nerve and a second to the ventral or dorsal spinal nerve ramus at the T9 level, it was shown that two separate populations of sensory nerve cell bodies in the T9 dorsal root ganglion were projecting to the splanchnic nerve and spinal rami, respectively. Only two double labelled cells were detected. The results support the theory that spinal and/or supraspinal interactions and not dichotomizing sensory axons are responsible for referred pain.
Dalsgaard
C J
CJ
Ygge
J
J
D000818:Animals; D005260:Female; D005456:Fluorescent Dyes; D005727:Ganglia, Spinal / Q000166:cytology* / Q000502:physiology; D008856:Microscopy, Fluorescence; D009434:Neural Pathways; D009475:Neurons, Afferent / Q000166:cytology*; D051381:Rats; D013127:Spinal Nerves / Q000166:cytology*; D013153:Splanchnic Nerves / Q000166:cytology*; D013194:Staining and Labeling
D005456:Fluorescent Dyes