medulla_spinalis
1. [ noun ] (anatomy,zoology) a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tube-like structure extending from the base of the brain through the vertebral canal to the upper lumbar region
Synonyms: spinal_cord
Related terms: neural_structure funiculus central_nervous_system spinal_fluid Golgi's_cell spinal_vein