Look at the bones in this picture.
No references allowed, no time limit.
Not in comments. I mean click on the image, take a pointer (pen, toothpick, whatever) and start at the top and work your way to the bottom, and name every bone in the picture.
Can't fool yourself on this one, and if you can't do it, you're not serious about this stuff.
Passing grade is 100%.
Study and re-test yourself until you get it.