Normal pressure of CSF is

Cerebrospinal fluid (CSF) CSF is present in the ventricular system of the brain and in the subarachnoid space around the brain and spinal cord. The CSF is mainly formed by the choroid plexuses of lateral ventricles and lesser amounts by the choroid plexus of 3rd and 4th ventricles. The total quantity of CSF is about 150ml. It is formed at the rate of about 200 ml / hr or 5000 ml / day. The normal pressure is 10-60 mm of H2O.