perimedullary zone

例句：

1. 1. The perimedullary zoneis where the nerves and blood vesselsmeet.
   髓周区是神经和血管相遇的地方。
2. 2. The perimedullaryzone plays a crucial role in the functionof the spinal cord.
   髓周区在脊髓的功能中起着至关重要的作用。
3. 3. The perimedullary zone is often involvedin diseases such as multiple sclerosis.
   髓周区常常与多发性硬化症等疾病有关。