Each facet joint is connected to a capsular ligament. The cauda equina is a fanning bundle of lumbar and sacral nerve roots exiting the spinal cord. The cordtypically terminates at the L1-L2 level ...
Ligaments and muscles connect these vertebrae, and a disc separates most of the vertebrae and acts like a cushion to absorb shock along the spine. Each vertebra is numbered and grouped into 5 regions.