<prompt> Which of the following factor regulates CSF pressure?Rate of CSF formationRate of CSF absorptionCerebral blood flowBlood pressure  <response>: Rate of CSF formation normally remains constant and is independent of CSF pressure. CSF absorption by arachnoid villi is propoionate to CSF pressure. Ref: Barrett K.E., Barman S.M., Boitano S., Brooks H.L. 2012. Chapter 33. Circulation through Special Regions. In K.E. Barrett, S.M. Barman, S. Boitano, H.L. Brooks Eds, Ganongs Review of Medical Physiology, 24e. 