👉 The "during fluid" refers to the portion of cerebrospinal fluid (CSF) that circulates through the central nervous system (CNS), including the brain and spinal cord, during normal physiological processes. This fluid is produced primarily by the choroid plexus in the ventricles and is continuously reabsorbed into the venous system via the arachnoid villi, maintaining a dynamic balance. The circulation of this fluid is crucial for cushioning the brain and spinal cord, removing metabolic waste, and providing nutrients. Disruptions in the production or reabsorption of during fluid can lead to conditions like hydrocephalus, where an excess of CSF causes increased intracranial pressure.
