title: Study on the fibre arrangement of the dorsal nerve root and its cellular constituents in the mouse fetus.
abstract: The fibre arrangement of the dorsal nerve root was studied in the mouse fetus during early stages of development and was found to consist of two bundles at their exit from the dorsal root ganglion. This separate arrangement of the fibres could be traced along the course of the dorsal nerve root as far as the pial ring. Moreover, neurolemmal cells and neuroblasts were found dispersed along the whole course of the dorsal nerve root. Aggregations of neuroblasts surrounded by a thin fibrous capsule along the dorsal nerve root near the dorsal root ganglia were described as intermediate ganglia.
mesh_terms: D000818:Animals; D001369:Axons; D002449:Cell Aggregation; D005727:Ganglia, Spinal / Q000166:cytology / Q000196:embryology*; D005865:Gestational Age; D051379:Mice; D009413:Nerve Fibers, Myelinated / Q000166:cytology; D013126:Spinal Nerve Roots / Q000166:cytology / Q000196:embryology*