👉 The cups fluid, also known as cerebrospinal fluid (CSF), is a clear, colorless liquid that circulates within the central nervous system (CNS) of the brain and spinal cord. It acts as a protective cushion, shielding these delicate tissues from mechanical injury and maintaining a stable environment for proper neural function. Produced by the choroid plexus in the ventricles, the fluid bathes the brain and spinal cord, aiding in nutrient transport, waste removal, and providing essential ions for nerve conduction. The circulation of this fluid is crucial for maintaining intracranial pressure and ensuring the health and functionality of the CNS.