Skull base is really more interesting than the shell that covers our bulbous brain lobes. This is where our brain stem resides, the evolutionarily oldest structures in our central nervous system that could be called “brain”. That means that here are the exits of most of the brain nerves and, of course, the spinal cord. Here also enter and exit all the blood vessels supplying the brain with oxygen.

Profesor Kos has put a great emphasis on the fact that here is the position of the brain stem, because any damage to the brainstem is most likely to be lethal. And what he constantly warned about was the danger of hemorrhaging in this region, which can occur after even superficially mild concussion. He mentioned the absurdity of movies and media in general portraying  hitting someone in the head as a routine way to knock someone out. But it is extremely dangerous, especially hits delivered on the top of the head.  A hit on the top of the head transfers most of the force right down to the base of the skull and if it causes there a damage to even a small blood vessel, it can mean game ever.