Cerebrospinal Fluid (CSF) Diagnostics - Brochure

The cerebrospinal fluid (CSF) surrounds the brain and the spinal cord. Its primary function is physical protection of the central nervous system (CNS). The fluid spaces surround the ventricle in the brain and the subarachnoid space (inner and outer fluid spaces). Approximately 80 to 90 % of the cerebrospinal fluid is formed in the choroid plexus from the blood. Every day 500 ml of fluid are produced, which is about three times the volume of fluid of 150 ml in an average adult.