Cerebrospinal fluid (csf) is a watery fluid that continually circulates through the brainÒ€ℒs ventricles (hollow cavities) and around the surface of the brain and spinal cord. Csf acts as a shock absorber, cushion or buffer, providing basic mechanical and immunological protection to the brain inside the skull. Csf also serves a vital function in the cerebral autoregulation Ò€¦

It occupies the central spinal canal, the ventricular system, and the Ò€¦