👉 Cerebrospinal fluid (CSF) is a fluid that circulates in the brain, spinal cord and peripheral nerves. It helps to maintain homeostasis by transporting nutrients, waste products, hormones, and other substances throughout the body. In cerebrospinal fluid, there are several types of proteins and lipids called neurofilaments which help to transport these substances from the blood into the CSF. Cerebrospinal fluid is also made up of small vesicles (m
