True statements about the cerebral blood flow include:
a. it is constant for the blood pressure in the range between 50-150mmHg
b. the blood pressure is affected more by the PaO2 than PaCO2
c. hypocapnia causes vasoconstriction
d. cerebral arterioles constricts when the blood pressure raises
a. it is constant for the blood pressure in the range between 50-150mmHg
b. the blood pressure is affected more by the PaO2 than PaCO2
c. hypocapnia causes vasoconstriction
d. cerebral arterioles constricts when the blood pressure raises