How well do you know your brain

As a child I used to think that the inside of our brains was hollow. I remember one time, I couldn’t have been more than four or five, during one of those silly outdoor games, I got hit by a stone on the head. The bleeding that followed made me form an image of a gaping hole on my head from which this red fluid was coming from.

But my first real encounter with a human brain was during the second trimester of my first year in campus, with a cadaver we had named Bob, for reasons I am yet to recall. We watched in disbelief as our very able anatomy lab tech mercilessly drilled Bob’s head open and removed a white slimy mass from it. Behold! An actual human brain. Seriously???  I have to say I was a bit disappointed. In my head I had pictured something hollower.