World of Biology on Instagram: "🧠 Cerebrospinal Fluid (CSF) Collection is a crucial diagnostic procedure performed through a lumbar puncture to assess brain and spinal cord health. This clear, protective fluid provides essential information about infections, bleeding, and neurological conditions. During the test, a small amount of CSF is carefully withdrawn from the lower back using a needle. Analyzing this fluid helps doctors identify central nervous system infections, autoimmune diseases, int