脊髄 脳脊髄
a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain a long tubelike structure extending from the base of the brain through the vertebral canal to the upper lumbar region
感覚および運動神経インパルスを脳とやりとりする、中枢神経系の主要な部分 脳の底部から椎骨管を通って上腰部へ伸びる管状の構造物