👉 The fluid in the brain, also known as cerebrospinal fluid (CSF), is a clear, colorless liquid that surrounds and cushions the brain and spinal cord. It plays a crucial role in maintaining the health of these structures by providing buoyancy, reducing friction between the brain and the skull, and facilitating the removal of waste products. Fluid also helps in nutrient transport and acts as a shock absorber, protecting the brain from physical impacts. The fluid's composition closely matches that of blood plasma, and its production and circulation are tightly regulated by the choroid plexus and arachnoid granulations, ensuring a balance that supports optimal neurological function.
