medulla spinalis

1. The structure of medulla spinalis is more primitive.
   脊髓结构较原始。
2. Tumors of upper cervical medulla spinalis in 41 operative cases
   上颈段脊髓肿瘤手术41例报告
3. Microsurgical techniques are important for medulla spinalis protection and total tumor removal.
   显微技术利于肿瘤全切除，防止脊髓损伤。

noun

1. a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain

   Synonym:    spinal cord