neuraxis

Noun

 * 1)  A subset of the central nervous system: i.e., the spinal cord, rhombencephalon, mesencephalon and diencephalon.
 * 2) * 1984,, “The Disembodied Lady”, chapter 3 in  (Reset 2007), page 51:
 * The picture revealed by spinal tap was one of an acute polyneuritis, but a polyneuritis of a most exceptional type: not like Guillian–Barré syndrome, with its overwhelming motor involvement, but a purely (or almost purely) sensory neuritis, affecting the sensory roots of spinal and cranial nerves throughout the neuraxis.
 * The picture revealed by spinal tap was one of an acute polyneuritis, but a polyneuritis of a most exceptional type: not like Guillian–Barré syndrome, with its overwhelming motor involvement, but a purely (or almost purely) sensory neuritis, affecting the sensory roots of spinal and cranial nerves throughout the neuraxis.