cerebrospinalvæskesystemet

Cerebrospinal fluid, often abbreviated as CSF, is a clear, colorless bodily fluid that bathes the brain and spinal cord. It is produced primarily by the choroid plexuses within the ventricles of the brain. CSF plays a crucial role in protecting the central nervous system. It acts as a shock absorber, cushioning the brain and spinal cord against physical trauma.

The circulation of CSF within the ventricular system and subarachnoid space is a continuous process. This circulation helps to remove metabolic waste products from the brain and spinal cord. CSF also contributes to maintaining a stable chemical environment for neurons, supplying essential nutrients and removing potentially harmful substances.

Analysis of CSF is a common diagnostic tool in medicine. Samples can be obtained through a lumbar puncture, a procedure where a needle is inserted into the lower back to extract fluid. Examining the composition of CSF can help diagnose a variety of neurological conditions, including infections like meningitis, inflammation, bleeding, and certain cancers affecting the central nervous system. Abnormalities in the pressure, cell count, protein levels, or presence of specific substances within the CSF can indicate underlying pathology.