What is the primary function of cerebrospinal fluid?

Cerebrospinal fluid (CSF) serves several vital functions in the central nervous system, of which buffering, nourishing, and detoxifying the brain and spinal cord are key. It acts as a protective cushion that helps absorb shocks and reduces the risk of injury to these delicate tissues. CSF also helps maintain a stable chemical environment essential for proper neuronal function, providing nutrients while removing metabolic waste products from brain tissue.

Additionally, the fluid facilitates the exchange of substances between blood and the central nervous system, thus contributing to maintaining homeostasis within the brain. Therefore, its role in supporting and protecting the brain and spinal cord is integral to overall neurological health.