Final answer:
Cerebrospinal fluid (CSF) is found in the central canal of the spinal cord and provides protection to the brain.
Step-by-step explanation:
Cerebrospinal fluid (CSF) is found in the central canal of the spinal cord. It is a clear bodily fluid that occupies the subarachnoid space and the ventricular system around and inside the brain. CSF acts as a cushion and provides mechanical and immunological protection to the brain.