👉 Clear fluid, also known as cerebrospinal fluid (CSF), is a colorless, clear, and slightly viscous liquid that surrounds the brain and spinal cord. It acts as a protective cushion, providing buoyancy to these vital organs by reducing their effective weight in the cerebrospinal canal. This fluid also facilitates the exchange of nutrients and waste products, ensuring proper brain function. Additionally, it helps maintain a stable environment for the nervous system by regulating temperature and removing metabolic waste. The production of CSF is continuous, with new fluid constantly being produced to replace the older fluid that drains out through the ventricles and subarachnoid spaces.