Bacterial meningitis is a serious condition, accounting for 80 percent of all meningitis cases, according to the
The center location for bacterial meningitis is the sub-arachnoid space in the brain, according to the
Located in the sub-arachnoid space is the cerebrospinal fluid, or CSF. Besides being in the sub-arachnoid space, the Merck Manual Home Edition notes that the CSF also is found through the meninges, as well as in the internal spaces of the brain. The appearance of the CSF is a clear and colorless liquid. The main purpose of the CSF is to cushion the brain and spinal cord, thus acting as a shock absorber during impact to the head.