I have read many articles about how the brain is the most power-hungry organ in any living complex organism, requiring about 70% of it's oxygen supplies in the resting state.
Since the usual medium of oxygen delivery is through respiration, this should mean that a lot of blood is supplied to (and hence present in) the brain.
Why then is the color of the brain almost always white? There is usually a little red tainting on the exterior and that's it, you can see the interior is still white. Should it not be red? Presuming that for a higher surface area to volume ratio, most of the brain cells are in direct contact with the bloodstream.