From top to bottom, the first seven bones are the cervical vertebrae, the next twelve are the thoracic vertebra and the next five, are the lumbar vertebrae.

从上至下数，颈椎7块，胸椎12块，腰椎5块。

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，指的腰椎脊髓腔的狭窄。

The spinal cord is connected to the brain and travels through the spinal canal to the second lumbar vertebra, where it ends in a cone, called conus medullaris.

脊髓向上连通大脑，在脊髓腔内一直延伸到第二腰椎，终止于此形成结构，称为脊髓。

Each cervical, thoracic, and lumbar vertebra is separated by an intervertebral disc, which allows for a slight movement of the vertebrae, and act as a shock absorber.

每块颈、胸、腰椎之间都有一个椎间盘，它能使椎轻微移动，并起到减震的作用。