The major determinant for the rate of cerebral blood flow is:: (A) Intracranial pressure, (B) Aoic blood pressure, (C) Aerial PaCO2, (D) Neurogenic regulation
Answer is A. Factors affecting overall cerebral blood flow include: Intracranial pressure Local constriction & dilation of cerebral aerioles Mean aerial pressure at brain level Viscosity of blood Mean venous pressure at brain level