👉 The opening fluid, also known as cerebrospinal fluid (CSF), is a clear, colorless liquid that circulates within the central nervous system (CNS). It acts as a protective cushion, providing buoyancy to the brain and spinal cord, which helps reduce their effective weight by about 20%, thereby minimizing the risk of injury. This fluid also plays a crucial role in maintaining homeostasis by regulating the chemical environment around the brain and spinal cord, removing metabolic waste products, and supplying nutrients. Additionally, it helps in the removal of harmful substances and maintains the proper ionic balance necessary for optimal neuronal function.
