It's from this site, it's got all of these anatomical structures and art from Rennaisance (sp?) artists, http://bibliodyssey.blogspot.com/
The particular page <-- is from is http://bibliodyssey.blogspot.com/2006/06/pantagruel-i.html... they're *absurdist woodcuts by Francois Duprez as illustrations to one of his novels
I like it because it's similar to the ones from Alice in Wonderland