Most people, when they first look at a fresh human brain, they say, "It doesn't look what you're typically looking at when someone shows you a brain." Typically, what you're looking at is a fixed brain. It's gray. And this outer layer, this is the vasculature, which is incredible, around a human brain.
Miremos el cerebro. Mucha gente al ver un cerebro real por primera vez dice: "no se parece a lo que se ve generalmente cuando alguien muestra un cerebro". En general se ve un cerebro estático, gris. Esta capa exterior es la vasculatura; algo que recubre al cerebro humano.