<prompt> False about CSF isTotal volume 125-150mlRate of formation 500mldayAbsorbed through arachnoid villiMajor source is arachnoid granulations in superior sagittal sinus  <response>: Major source- Choroidal plexus of all 4 ventricles, also from ependymal cells of ventricles and brain.Absorbed through arachnoid villi and arachnoid granulations into subdural sinuses, maximum in the superior sagittal sinus 