Cerebral perfusion pressure is -

Ans. is 'c' i.e., Aerial pressure minus intracranial pressure(Ref Principles of medical physiology p. 719.)Cerebral perfusion Pressure: is the difference between mean aerial pressure (MAP) and intracranial pressure.(ICP) or central venous pressure (CVP) whichever is greater. CPP is normally 80-100 mm Hg.