Abstract
Summary
The distribution of the cortical feedback fibers in the nuclei cuneatus and gracilis has been compared with the cyto-archi-tecture and the dendritic architecture of these nuclei. This comparison revealed that the cortical fibers distribute primarily to those parts of the nuclei containing multipolar, triangular, and fusiform cells maintaining long, sparsely ramifying dendrites. The cells with frequently ramifying dendrites, on the other hand, receive only few fibers. Furthermore, preliminary evidence suggests that some of the former cells maintain more collaterals than the latter.
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