Sam Loman has taken the subway map infographic style to the human body.  Underskin is an infographic that traces the routes of eight different systems within the body (Digestive, Respiratory, Arterial, etc.), and highlights the major connection points.

You can see Sam’s work on just-sam.com, but the image there is low resolution.  She sent me the image above so you could see the high-resolution details.  Thanks Sam!

Found on VizWorld and Information Aesthetics.