Where does the spinal cord end in terms of vertebrae?

The spinal cord typically ends at the level of the second lumbar vertebra, commonly referred to as L2. This anatomical landmark is significant because the spinal cord does not extend the full length of the vertebral column. Instead, it usually terminates in the conus medullaris at L2 in adults, where it then transitions into the cauda equina, a collection of nerve roots that continue down the vertebral canal.

Understanding this anatomy is crucial for medical professionals, including chiropractic assistants, as it helps in assessing and managing conditions related to the nervous system and understanding potential sites for interventions, such as spinal taps or injections. Additionally, awareness of this termination point aids in distinguishing the upper spinal cord from the lower structures, which can be important during examinations and treatments related to spinal health.