beyond this point , while only occasional central processes in dorsal roots were weakly stained , the majority of peripheral processes in spinal nerves were positive . beta , beta'-iminodipropionitrile produced segregation of microtubules and membranous organelles from neurofilaments in the peripheral nervous system portion and accumulation of neurofilaments in the central nervous system portion of spinal motor axons .
C0205955
dorsal roots
C0037941
spinal nerves