Canalis centralis

The central canal (also known as ependymal canal) is the cerebrospinal fluid-filled space that runs through the spinal cord.

The central canal lies below and is connected to the ventricular system of the brain, from which it receives cerebrospinal fluid, and shares the same ependymal lining.

The central canal helps to transport nutrients to the spinal cord as well as protect it by cushioning the impact of a force when the spine is affected.

The central canal represents the adult remainder of the central cavity of the neural tube.

It generally occludes (closes off) with age.