The present study demonstrates that there are more dorsal root axons than dorsal root ganglion cells in the L 6 -S 1 dorsal roots of the rat. The excess fibers do not come from aberrant dorsal root ganglion cells and our control procedures indicate that there are no extraneous fibers in ...
Back-labeled thalamic neurons could also be visualized indicating the presence of intact thalamo-cortical fibers (TC) (Figure 1B). CST, on the other hand, was completely absent in the Sip1 mutants, where almost no axons could be seen passing through the cerebral peduncle (CP) (Figure 1B)...