Physiology – MCQ 17 – Cerebral blood flow regulation

Cerebral blood flow is regulated by all except
a) Blood pressure
b) Arterial PCO2
c) Potassium ions
d) Cerebral metabolic rate

Correct answer : c) Potassium ions

Blood brain barrier is not permeable to ions. Hence they cannot influence cerebral blood flow.

Add a Comment

Your email address will not be published. Comments will be displayed only after moderation.

Read previous post:
physiology mcq
Physiology – MCQ 16 – Endothelin-1

True regarding endothelin-1 are all except a) Bronchodilatation b) Vasoconstriction c) Decreased GFR d) Has inotropic effect Correct answer :...