nucleus spinalis nervi accessorii

例句：

1. 1. The spinal cord is the main nerve center of the body.
   脊髓是身体的主要神经中心。
2. 2. The spinal cord controls all the muscles in the body.
   脊髓控制着身体的所有肌肉。
3. 3. The spinal cord is responsible for transmitting signals from the brain to the rest of thebody.
   脊髓负责将大脑的信号传输到身体的其他部分。