The central cavity between the body and the arch is called the vertebral foramen.

椎体与椎弓之间的中央空腔称为椎孔。

Compression can also be caused by spinal stenosis which is the narrowing of the vertebral foramen in the lumbar vertebrae.

另外，椎管狭窄也可引起压迫；椎管狭窄，顾名思义，指的是腰椎脊髓腔的狭窄。