Visualization of Pathways - Spinal Cord

 Visualization of Pathways

The various pathway systems cannot be identified on normal transverse sections of the spinal cord. Only under special circum-stances (in experimental transection, in spi-nal cord injury, or during development when tracts become myelinated at different times), can they be distinguished from each sother, such as the late myelinating pyra-midal tract (D2). In case of injuries, distal fibers separated from the perikaryon degenerate so that their area in the spinal cord becomes visible, such as the fasciculus gracilis (E13).


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