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Methacrylate-embedded sections and short-survival thymidine radiograms of the hippocampal dentate gyrus were examined in perinatal and postnatal rats in order to trace the site of origin and migration of the precursors of granule cells and study the morphogenesis of the granular layer. The densely packed, spindle-shaped cells of the secondary dentate matrix(More)
This study deals with the site of origin, migration, and settling of the principal cell constituents of the rat hippocampus during the embryonic period. The results indicate that the hippocampal neuroepithelium consists of three morphogenetically discrete components--the Ammonic neuroepithelium, the primary dentate neuroepithelium, and the fimbrial(More)
Number of pages: 366 pages Thank you for reading development of the cranial nerve ganglia and related nuclei in the rat. As you may know, people have search numerous times for their favorite books like this development of the cranial nerve ganglia and related nuclei in the rat, but end up in infectious downloads. Rather than reading a good book with a cup(More)
In radiograms of rat embryos that received a single dose of [3H]thymidine between days E16 and E20 and were killed 24 hours after the injection, the heavily labeled cells (those that ceased to multiply soon after the injection) form a horizontal layer in the intermediate zone of the hippocampus, called the inferior band. The fate of these heavily labeled(More)
Development of layer I and the subplate of the rat neocortex was examined with [3H]thymidine autoradiography. The experimental animals used for neurogenesis were the offspring of pregnant females injected with [3H]thymidine on 2 consecutive days: Embryonic Day (E) 13-E14, E14-E15, . . . E21-E22, respectively. On Postnatal Day 5, the proportion of layer I(More)