A cerebrospinal fluid-filled space that runs longitudinally through the length of the entire spinal cord. The central canal is contiguous with the ventricular system of the brain. The central canal represents the adult remainder of the neural tube. [ http://en.wikipedia.org/wiki/Central_canal ]

Synonyms: cavity of central canal of spinal cord central canal lumen spinal cord lumen

This is just here as a test because I lose it