Cerebrospinal fluid (CSF) is a clear, colorless liquid that surrounds the brain and spinal cord. It acts as a cushion, protecting these vital structures from injury and providing buoyancy. CSF also helps remove waste products from the brain and delivers essential nutrients. Produced in the choroid plexus of the brain's ventricles, CSF circulates through the subarachnoid space and is eventually absorbed into the bloodstream. This fluid plays a crucial role in maintaining the overall health and function of the central nervous system, ensuring that the brain and spinal cord operate effectively.