👉 The course fluid, also known as cerebrospinal fluid (CSF), is a clear, colorless liquid that circulates within the central nervous system (CNS), consisting of water, proteins, glucose, and various waste products. It acts as a cushioning agent for the brain and spinal cord, protecting them from mechanical shocks and reducing friction during movement. Additionally, CSF plays a crucial role in nutrient transport, waste removal, and maintaining the proper chemical environment for optimal neural function. It flows through the ventricular system, enters the subarachnoid space surrounding the brain and spinal cord, and then drains through the arachnoid villi into the venous system, ensuring a continuous and balanced environment for the CNS.
