. ( ) extends from the medulla oblongata(延髓) in the brainstem(脑干) to the lumbar region of the vertebral column(脊椎). </p></p>
. ( ) extends from the medulla oblongata(延髓) in the brainstem(脑干) to the lumbar region of the vertebral column(脊椎).
发布时间:2025-11-17 00:23:49