Zombie Week Day 5

Welcome to Zombie week, the best week for random facts about brains.  Check back each day for your daily dose of BRAINS.

Today's fact:

The vertebra that holds up the skull (the very top one) is called the "atlas" vertebra, named of course after the famous Greek Titan who held the world on his shoulder.  You know what that implies?  That we have BIG brains.  There could be whole worlds in those brains!