So remember that time in anatomy class when the teacher instructed you to give a lesson to the entire because you kept chanting ‘Ass-bone’? Well I do and it wasn’t me, it was the Vietnamese dude in front of me that said it. Below is a lesson on the human anatomy minus mandatory ‘Ass-bone’ comment. Yeah, that’s Diego Sanchez’s skull and if you look really close it says ‘BJ Penn was here’ right where the skin flap meets the bone.