Physiology As aerial pressure is raised and lowered during the course of a day, blood flow through the brain would be expected to A Change in the same direction as the aerial blood pressure because of the limited autoregulatory ability of the cerebral vessels B Change in a direction opposite the change in mean aerial pressure C Remain constant because cerebral vascular resistance changes in the same direction as aerial pressure D Fluctuate widely, as both aerial pressure and brain neural activity status change 💡 Explanation As aerial pressure is raised and lowered during the course of a day, blood flow through the brain would be expected to ✓ Correct Answer: C. Remain constant because cerebral vascular resistance changes in the same direction as aerial pressure